Running c300 on ethanol?
#1
Senior Member
Thread Starter
Running c300 on ethanol?
My friends dad actually has a mercedes c300 and he says that he runs the car on 135 octane ethanol.. He said that only the c300 not the 350 can consume this kind of fuel. Has anyone heard about this? I am really interested in it he says he drove my 300 and compared to his, his is much quicker. Does anyone know whatup with this?
Thanks,
Shai
Thanks,
Shai
#3
MBWorld Fanatic!
Join Date: Feb 2004
Location: SEATTLE WASHINGTON USA
Posts: 3,986
Likes: 0
Received 6 Likes
on
6 Posts
'08 C300 Lux Barolo Red Beige Leather P2 MM 18" wheels '84 944
E85
My friends dad actually has a mercedes c300 and he says that he runs the car on 135 octane ethanol.. He said that only the c300 not the 350 can consume this kind of fuel. Has anyone heard about this? I am really interested in it he says he drove my 300 and compared to his, his is much quicker. Does anyone know whatup with this?
Thanks,
Shai
Thanks,
Shai
There is a thread someplace where this was discussed long ago. No one has claimed that E85 produces more power.
#4
Member
Join Date: Oct 2009
Location: Miami, FL
Posts: 242
Likes: 0
Received 0 Likes
on
0 Posts
C300 Luxury
I ran it on E85 because it's real cheap but it also burns a lot faster so it's about the same price as petrol. ALSO, although I have read the whole manual, even if you don't, when you open your gas door at the tank, it says "ONLY PREMIUM OR E85 ETHANOL", at least for my vehicle.
The following users liked this post:
KaponyOlan (01-07-2023)
#7
MBWorld Fanatic!
Join Date: Feb 2004
Location: SEATTLE WASHINGTON USA
Posts: 3,986
Likes: 0
Received 6 Likes
on
6 Posts
'08 C300 Lux Barolo Red Beige Leather P2 MM 18" wheels '84 944
Flex fuel
I think I read someplace recently that MB has eliminated E85 usage from their model lineup. Likely because E85 is so hard to find. My closest source is about 25 miles away.
Trending Topics
#8
MBWorld Fanatic!
E85 capable vehicles usually have a yellow gas cap and it is clearly indicated on the cap and the door. If you run E85- the manual states that after you fill up (and you should be on near empty to fill up) you should start the car and let it sit at idle for 5 minutes. It definitely burns faster and the exhaust smells different. It almost has a sweet smell.
The following users liked this post:
KaponyOlan (01-07-2023)
#10
E85
My 2008 C300 runs on E85 due to its flex fuel capability. It seems to have more speed but much less torque. So it makes more fun to drive but fuel consumptions is about 15-35% higher than with 95 octane gasoline.
The following users liked this post:
KaponyOlan (01-07-2023)
#11
MBWorld Fanatic!
Join Date: Jan 2008
Posts: 1,321
Likes: 0
Received 0 Likes
on
0 Posts
C300 Sport/Palladium Silver on Black/P2
Yeah I tried it for one tank once.
Only try it out, IF your fuel filler door says the car can take E85.
Even then, ethanol is very corrosive. The car supposedly has lines and things to protect it from this, but I prefer not to do it for the long haul. I just wanted to try it one time.
The mileage does go down. If they engineered an engine just for ethanol, supposedly the mileage wouldn't go down so bad.
It is a few cents cheaper per gallon often though.
Only try it out, IF your fuel filler door says the car can take E85.
Even then, ethanol is very corrosive. The car supposedly has lines and things to protect it from this, but I prefer not to do it for the long haul. I just wanted to try it one time.
The mileage does go down. If they engineered an engine just for ethanol, supposedly the mileage wouldn't go down so bad.
It is a few cents cheaper per gallon often though.
#13
Yeah I tried it for one tank once.
Only try it out, IF your fuel filler door says the car can take E85.
Even then, ethanol is very corrosive. The car supposedly has lines and things to protect it from this, but I prefer not to do it for the long haul. I just wanted to try it one time.
The mileage does go down. If they engineered an engine just for ethanol, supposedly the mileage wouldn't go down so bad.
It is a few cents cheaper per gallon often though.
Only try it out, IF your fuel filler door says the car can take E85.
Even then, ethanol is very corrosive. The car supposedly has lines and things to protect it from this, but I prefer not to do it for the long haul. I just wanted to try it one time.
The mileage does go down. If they engineered an engine just for ethanol, supposedly the mileage wouldn't go down so bad.
It is a few cents cheaper per gallon often though.
#14
#15
#17
Super Moderator
Only run on ethanol or E85 if you have a "Flex fuel" car as indicated on the gas flap. Alcohols can damage fuel system components & elastomers that were not designed to use them.
#18
Member
Join Date: Nov 2011
Location: Toronto, Canada
Posts: 153
Likes: 0
Received 0 Likes
on
0 Posts
2008 C300 6speed, 2015 GLK 250 2017 E400 wagon
It's the biggest joke of a sales pitch (e85). Here in Ontario Canada. Many Domestics Chev, Ford, Chyrs. offer Flex Fuel. Google E85 fuel stations in ontario canada. How many do you find.? Maybe 2. My C300 has flex fuel and i will never use it. 91 octane and higher runs just fine.
#19
Super Member
Join Date: Nov 2008
Location: CALIFORNIA
Posts: 730
Likes: 0
Received 1 Like
on
1 Post
2012 E350 RWD
It does give it a little performance boost but it's not a big difference. There is one station I know of which is 5mi or so. The price difference isn't enough to make me want to use it versus 91 octane. As people say, wastes a lot more gas since it needs more of it to burn. I average 320Mi before I fill up (before light goes on) with 91 octane vs 260Mi with E85.
#20
Super Moderator
It can only give a small performance increase if it allows the engine to run more advanced timing so it is dependent on ECU tune/set-up.
#21
Member
Join Date: Apr 2008
Posts: 213
Likes: 0
Received 2 Likes
on
1 Post
97 S600 coupe/gf 16 C300 Lux. Former: 08 GL450, 83 300D, 97 C230, 08 c300 luxury, 92 500SL, 93 400E
Google "non-ethanol gas" and pull up a list of stations by state that sell REAL gasoline. I started running my 92 SL and the c300 on 93 octane "pure" gasoline, maybe 15 cents more a gallon, and I absolutely notice a difference in mileage. In a year I'd never gotten over 30.2 on an interstate trip, and I got 31.9 my first interstate trip after switching.
#22
MBWorld Fanatic!
Join Date: Oct 2009
Posts: 2,071
Likes: 0
Received 18 Likes
on
14 Posts
Nissan GT-R BE / '12 Ducati-1199 Panigale S / '12 C300-4M Loaded/GLK350-4M Loaded
#23
Senior Member
Join Date: Aug 2010
Location: PA
Posts: 473
Likes: 0
Received 0 Likes
on
0 Posts
2012 E350 4-matic SPORT
I run my 2010 C300 4matic on premium only. I never even gave it a thought of ever putting anything bellow 91. Its usually about 93 octane around here.
[IMG][/IMG]
[IMG][/IMG]