Regular Unleaded Gas Users Post here
02-27-2008, 12:53 AM
#26
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4 wheels
I have owned an Acura TL and that car really was designed for 87 octane since it had a low compression. It was a 2004 TL with A-SPEC. Take my advice, fill up with 91 or 93 man.
02-27-2008, 05:43 AM
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2008 C 220 CDI Avantgarde
No such problem down under. Here the min Octane is 91, premium is 95 and super premium is 98 rated. 100 octane is also available but at a cost
02-27-2008, 06:43 AM
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2005 C-230 Sport Sedan
version coding
just to add my two cents to this thread, there are settings in the Engine computer that can be modified to allow for lower octane to be used. you can acess these settings with factory diagnostic computer. i have the computer, have looked at the settings, but am going to leave it at high octane setting. i only use chevron with techron, i sent my 2005 c230 k in for some warranty work and they gave me a 2007 c230 V-6, what a dog!! and to top it off it was pinging really bad. the dealer fills the first tank, i guess they are using crap gas in their loaner fleet
02-27-2008, 06:56 AM
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C220CDI
Doesn't matter for me, I'm using Diesel. Its the best!
02-27-2008, 06:57 AM
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2019 GLC 300
Interesting...
just to add my two cents to this thread, there are settings in the Engine computer that can be modified to allow for lower octane to be used. you can acess these settings with factory diagnostic computer. i have the computer, have looked at the settings, but am going to leave it at high octane setting. i only use chevron with techron, i sent my 2005 c230 k in for some warranty work and they gave me a 2007 c230 V-6, what a dog!! and to top it off it was pinging really bad. the dealer fills the first tank, i guess they are using crap gas in their loaner fleet
02-27-2008, 07:04 AM
#31
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2008 C300 Sport, RWD, US
I find this interesting...as a systems engineer, I often find that there are "hidden" things such as this that the engineers build in so as to have the option there for different applications. Can you provide more detail on this setting ? Not to say that I'd change it (frankly I'm considering back tracking on my original desicion to use regular unleaded ) but if true it would mean that MB engineers at least had provided some methods to adjust the car for the use of lower octane gas.
02-27-2008, 07:20 AM
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2007 E63
Well, I'm a tightwad, what can I say. And although I have not done a comparison on the C300 mpg regular vs premium, in the past with other luxury sedans I have done the comparison and seen no difference. I'm not a heavy foot power kind of guy, so I'm not really going to notice much in the power difference - if any. Also, I typically use Shell gasoline always, and have had no issues around dirt buildup.
No one has presented any real evidence of long term damage, and if anyone has any, I'd can certainly be persuaded to change my mind on th issue.
And since now one else has posted (yet) to the forum that they are using Regular, I guess I am the only one "stupid"
enough to do so ?
Anyhow, thanks for the feedback, and keep it coming. I'll be sure to report when my engine blows up from "pre-ignition?".
No one has presented any real evidence of long term damage, and if anyone has any, I'd can certainly be persuaded to change my mind on th issue.
And since now one else has posted (yet) to the forum that they are using Regular, I guess I am the only one "stupid"
enough to do so ?Anyhow, thanks for the feedback, and keep it coming. I'll be sure to report when my engine blows up from "pre-ignition?".
02-27-2008, 07:28 AM
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2019 GLC 300
When your engine seals and engine starts knocking, you will kick yourself in the ***. High compression engines require premium fuel to prevent ignition since it take more energy to burn the gas. Would you put regular gasoline in a Ferrari or let alone an AMG?
I wish I could hit people in the head with a gas nozzle when I see them fill up 87 in a car that requires at minimum 91 octane. Why? Why? To save $2 at fill up? You are going to spend more money maintaining the car otherwise and have larger repair bills.
I wish I could hit people in the head with a gas nozzle when I see them fill up 87 in a car that requires at minimum 91 octane. Why? Why? To save $2 at fill up? You are going to spend more money maintaining the car otherwise and have larger repair bills.
Actually the most compelling reason I've heard so far is that it is really only about 3 bucks per fillup, which works out to only 150 or so bucks a year, so why take the chance. I guess I'm kinda just still in the mindset that I (still) have to scrape dollars and cents, possibly unlike many others on this board, some who seem to have multiple MB's, high dollar ones at that.
Anyhow, thanks for the admonishment
I'll certainly keep your thoughts in mind.
02-27-2008, 07:49 AM
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2005 C-230 Sport Sedan
I find this interesting...as a systems engineer, I often find that there are "hidden" things such as this that the engineers build in so as to have the option there for different applications. Can you provide more detail on this setting ? Not to say that I'd change it (frankly I'm considering back tracking on my original desicion to use regular unleaded ) but if true it would mean that MB engineers at least had provided some methods to adjust the car for the use of lower octane gas.
02-27-2008, 05:47 PM
#35
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C300
Actually using 87 might cost you more money than using 93 becasue you get less gas mileage with 87 that offsets the cost more than you would save from gas station.
Here is the math.
For example,
Let say you get 19mpg from city/highway driving with 93 which cost $3.20/g
then you would probably get 17.5mpg for same driving with 87 which $3.00/g
If you drive 1000 miles with 93, it will cost (1000mile / 19 mpg = 52.63g ) x $3.20/g = $168.42
if you drive 1000 miles with 87, it will cost (1000mile / 17.5 mpg = 57.14g ) x $3.00/g = $171.43
You see the math?
By driving 1000 miles, using 87 actually cost you $3 more out of your pocket.
Perhaps you might get more milleage than 17.5mpg with 87 but you will never get more mpg than using 93 for sure.
What I am trying to say here is that besides the possible nagative outcome in the future by using 87 as other ppl explained earlier, lowering gas quality does not save your money much in the begin with.
The better way of saving the gas cost is to lighten your foot more to increase your gas milage.
increasing 1 mpg can truely make big difference
(1000mile / 19 mpg = 52.63g ) x $3.20/g = $168.42
(1000mile / 18 mpg = 55.55g ) x $3.20/g = $177.42
saves $9 over 1000mile using same grade gas!
Here is the math.
For example,
Let say you get 19mpg from city/highway driving with 93 which cost $3.20/g
then you would probably get 17.5mpg for same driving with 87 which $3.00/g
If you drive 1000 miles with 93, it will cost (1000mile / 19 mpg = 52.63g ) x $3.20/g = $168.42
if you drive 1000 miles with 87, it will cost (1000mile / 17.5 mpg = 57.14g ) x $3.00/g = $171.43
You see the math?
By driving 1000 miles, using 87 actually cost you $3 more out of your pocket.
Perhaps you might get more milleage than 17.5mpg with 87 but you will never get more mpg than using 93 for sure.
What I am trying to say here is that besides the possible nagative outcome in the future by using 87 as other ppl explained earlier, lowering gas quality does not save your money much in the begin with.
The better way of saving the gas cost is to lighten your foot more to increase your gas milage.
increasing 1 mpg can truely make big difference
(1000mile / 19 mpg = 52.63g ) x $3.20/g = $168.42
(1000mile / 18 mpg = 55.55g ) x $3.20/g = $177.42
saves $9 over 1000mile using same grade gas!
Last edited by kimyoung_k; 02-27-2008 at 05:51 PM.
02-27-2008, 05:59 PM
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a quarter mile at a time
Actually using 87 might cost you more money than using 93 becasue you get less gas mileage with 87 that offsets the cost more than you would save from gas station.
Here is the math.
For example,
Let say you get 19mpg from city/highway driving with 93 which cost $3.20/g
then you would probably get 17.5mpg for same driving with 87 which $3.00/g
If you drive 1000 miles with 93, it will cost (1000mile / 19 mpg = 52.63g ) x $3.20/g = $168.42
if you drive 1000 miles with 87, it will cost (1000mile / 17.5 mpg = 57.14g ) x $3.00/g = $171.43
You see the math?
By driving 1000 miles, using 87 actually cost you $3 more out of your pocket.
Perhaps you might get more milleage than 17.5mpg with 87 but you will never get more mpg than using 93 for sure.
What I am trying to say here is that besides the possible nagative outcome in the future by using 87 as other ppl explained earlier, lowering gas quality does not save your money much in the begin with.
The better way of saving the gas cost is to lighten your foot more to increase your gas milage.
increasing 1 mpg can truely make big difference
(1000mile / 19 mpg = 52.63g ) x $3.20/g = $168.42
(1000mile / 18 mpg = 55.55g ) x $3.20/g = $177.42
saves $9 over 1000mile using same grade gas!
Here is the math.
For example,
Let say you get 19mpg from city/highway driving with 93 which cost $3.20/g
then you would probably get 17.5mpg for same driving with 87 which $3.00/g
If you drive 1000 miles with 93, it will cost (1000mile / 19 mpg = 52.63g ) x $3.20/g = $168.42
if you drive 1000 miles with 87, it will cost (1000mile / 17.5 mpg = 57.14g ) x $3.00/g = $171.43
You see the math?
By driving 1000 miles, using 87 actually cost you $3 more out of your pocket.
Perhaps you might get more milleage than 17.5mpg with 87 but you will never get more mpg than using 93 for sure.
What I am trying to say here is that besides the possible nagative outcome in the future by using 87 as other ppl explained earlier, lowering gas quality does not save your money much in the begin with.
The better way of saving the gas cost is to lighten your foot more to increase your gas milage.
increasing 1 mpg can truely make big difference
(1000mile / 19 mpg = 52.63g ) x $3.20/g = $168.42
(1000mile / 18 mpg = 55.55g ) x $3.20/g = $177.42
saves $9 over 1000mile using same grade gas!
02-27-2008, 06:22 PM
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LOADED 08' C350 & 14' GLK-350 Diamond White (P1, MM, AMG Pkg, Ln Trkng, Htd Sts, Keylss Go)
Why Is There No 93 Octane In Socal??? Only 91!!!
I still haven't found a 93 octane gas station in so cal... I am not looking specifically, but everytime I fill up at a gas station, Shell, Cheveron, Vons, Costco, 76, Etc... The highest I see is 91!!!
Where are you guys finding all the 93's in so-cal?
BTW, I live in Pomona area
Where are you guys finding all the 93's in so-cal?
BTW, I live in Pomona area
02-27-2008, 07:09 PM
#38
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2008 C300 Sport, RWD, US
Is your fuel economy really that bad? If you're still under 1,000 miles, it'll improve.
Actually using 87 might cost you more money than using 93 becasue you get less gas mileage with 87 that offsets the cost more than you would save from gas station.
Here is the math.
For example,
Let say you get 19mpg from city/highway driving with 93 which cost $3.20/g
then you would probably get 17.5mpg for same driving with 87 which $3.00/g
If you drive 1000 miles with 93, it will cost (1000mile / 19 mpg = 52.63g ) x $3.20/g = $168.42
if you drive 1000 miles with 87, it will cost (1000mile / 17.5 mpg = 57.14g ) x $3.00/g = $171.43
You see the math?
By driving 1000 miles, using 87 actually cost you $3 more out of your pocket.
Perhaps you might get more milleage than 17.5mpg with 87 but you will never get more mpg than using 93 for sure.
What I am trying to say here is that besides the possible nagative outcome in the future by using 87 as other ppl explained earlier, lowering gas quality does not save your money much in the begin with.
The better way of saving the gas cost is to lighten your foot more to increase your gas milage.
increasing 1 mpg can truely make big difference
(1000mile / 19 mpg = 52.63g ) x $3.20/g = $168.42
(1000mile / 18 mpg = 55.55g ) x $3.20/g = $177.42
saves $9 over 1000mile using same grade gas!
Here is the math.
For example,
Let say you get 19mpg from city/highway driving with 93 which cost $3.20/g
then you would probably get 17.5mpg for same driving with 87 which $3.00/g
If you drive 1000 miles with 93, it will cost (1000mile / 19 mpg = 52.63g ) x $3.20/g = $168.42
if you drive 1000 miles with 87, it will cost (1000mile / 17.5 mpg = 57.14g ) x $3.00/g = $171.43
You see the math?
By driving 1000 miles, using 87 actually cost you $3 more out of your pocket.
Perhaps you might get more milleage than 17.5mpg with 87 but you will never get more mpg than using 93 for sure.
What I am trying to say here is that besides the possible nagative outcome in the future by using 87 as other ppl explained earlier, lowering gas quality does not save your money much in the begin with.
The better way of saving the gas cost is to lighten your foot more to increase your gas milage.
increasing 1 mpg can truely make big difference
(1000mile / 19 mpg = 52.63g ) x $3.20/g = $168.42
(1000mile / 18 mpg = 55.55g ) x $3.20/g = $177.42
saves $9 over 1000mile using same grade gas!
02-27-2008, 07:15 PM
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2008 C300 Sport/2006 e55 amg
Suggestion, my own of course
I mean this in the nicest way, but if you are literally scrapping coins off of your sofa to pay for gas, then If I were you, I would sell the Mercedes and buy a car that was more appropriate to drive and more in line with my finances. This would alleviate much needed stress from your life. According to websters dictionary the word luxury, which this car is considered, a condition of abundance or great ease and comfort : sumptuous environment.
Something adding to pleasure or comfort but not absolutely necessary. an indulgence in something that provides pleasure, satisfaction, or ease.
I think that speaks for itself. I mean this in the nicest way possible.
p.s please post the vin!!
shaun
<-----Kia a possible alternative
Something adding to pleasure or comfort but not absolutely necessary. an indulgence in something that provides pleasure, satisfaction, or ease.
I think that speaks for itself. I mean this in the nicest way possible.
p.s please post the vin!!
shaun
<-----Kia a possible alternative
02-27-2008, 07:31 PM
#40
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C300
19mpg wasn't exampled from mine.
It's worse. currently at 1600mile, avg 15-16mpg with normal driving.
If I do some heavy driving it gets to 14mpg.
Most of mpg I ever got in the highway clocked after crused at 70mph was 23mpg
This seems to be average for most of C300 4Matic as far as I heard from this forums.
02-27-2008, 07:37 PM
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a quarter mile at a time
I still haven't found a 93 octane gas station in so cal... I am not looking specifically, but everytime I fill up at a gas station, Shell, Cheveron, Vons, Costco, 76, Etc... The highest I see is 91!!!
Where are you guys finding all the 93's in so-cal?
BTW, I live in Pomona area
Where are you guys finding all the 93's in so-cal?
BTW, I live in Pomona area
02-27-2008, 07:48 PM
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C300
02-27-2008, 08:09 PM
#43
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Regular
fuel in a high compression engine.
Shame on you
and to the guy that says you can adjust the ecu to compensate to the low octane fuel.Sure you can,just follow the owners manual to avoid prolonged speeds and uphill climbs under load in the event you can not obtain fuel of the required octane
Don't post the vin just have the common decency to note in your sales blurb someday that the car was on a steady diet of knock inducing low octane fuel and most likely poorly maintained in other areas by the low rent owner
Shame on you
and to the guy that says you can adjust the ecu to compensate to the low octane fuel.Sure you can,just follow the owners manual to avoid prolonged speeds and uphill climbs under load in the event you can not obtain fuel of the required octane
Don't post the vin just have the common decency to note in your sales blurb someday that the car was on a steady diet of knock inducing low octane fuel and most likely poorly maintained in other areas by the low rent owner
02-27-2008, 09:10 PM
#44
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2019 GLC 300
I mean this in the nicest way, but if you are literally scrapping coins off of your sofa to pay for gas, then If I were you, I would sell the Mercedes and buy a car that was more appropriate to drive and more in line with my finances. This would alleviate much needed stress from your life. According to websters dictionary the word luxury, which this car is considered, a condition of abundance or great ease and comfort : sumptuous environment.
Something adding to pleasure or comfort but not absolutely necessary. an indulgence in something that provides pleasure, satisfaction, or ease.
I think that speaks for itself. I mean this in the nicest way possible.
p.s please post the vin!!
shaun
<-----Kia a possible alternative
Something adding to pleasure or comfort but not absolutely necessary. an indulgence in something that provides pleasure, satisfaction, or ease.
I think that speaks for itself. I mean this in the nicest way possible.
p.s please post the vin!!
shaun
<-----Kia a possible alternativeBTW, my 2008 C was paid for in full at the dealer, as was the past 7 or 8 new vehicles I have purchased. So I think I have the finacial end covered. Maybe because I try to get a handle on unnecessary costs and limit those when possible.
02-27-2008, 09:14 PM
#45
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2019 GLC 300
Articles on Premium vs Regular
Not necessarily positive proof of my prior statements, but supporting evidence possibly:
http://www.usatoday.com/money/autos/...emiumgas_x.htm
http://www.edmunds.com/advice/fuelec...3/article.html
http://www.usatoday.com/money/autos/...emiumgas_x.htm
http://www.edmunds.com/advice/fuelec...3/article.html
03-04-2008, 01:04 PM
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2008 C-300/ 19' maya MRS black wheels H@R Springs//powerchipped//Brabus Trunk spoiler//HID Fogs//
dude, you gotta use premium....its the only way, your driving a benz man
03-04-2008, 03:01 PM
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C3004Matic Sport, Blk on Blk, Pano, P1, MMC, Ipod
please post your vin number
davatk-
Please post your vin number here so that the Mercedes spies who cull forum posts don't have to hunt your identity down through other posts before they can void your warranty after a post like that. Otherwise, the poor mopes will have to go through your threads and see if you've indicated elesewhere your name or address or etc.
Generally, as a word of advice, not too good to post warranty voiding posts like that on a high profile forum.
Plus, I'm with the others: why buy a nice car and cheap out on gas? And, at least with the c300 4 matic, the thing is pokey enough you might have to get and push it to go quickly if you knock off any more "performance".
Please post your vin number here so that the Mercedes spies who cull forum posts don't have to hunt your identity down through other posts before they can void your warranty after a post like that. Otherwise, the poor mopes will have to go through your threads and see if you've indicated elesewhere your name or address or etc.
Generally, as a word of advice, not too good to post warranty voiding posts like that on a high profile forum.
Plus, I'm with the others: why buy a nice car and cheap out on gas? And, at least with the c300 4 matic, the thing is pokey enough you might have to get and push it to go quickly if you knock off any more "performance".
