View Poll Results: Since gas is going up again.....what grade gas do you put in your C?
Always use regular unleaded
2
2.60%
Always use PLUS unleaded
1
1.30%
Always use PREMIUM unleaded
73
94.81%
Random...different grades at different times
1
1.30%
Voters: 77. You may not vote on this poll
what kinda gas do you put in your C?
07-23-2002, 02:38 PM
#76
Former Vendor of MBWorld
Originally posted by Boo2
Shell is Porsche recommended!!!!!
Shell is Porsche recommended!!!!!
07-23-2002, 02:43 PM
#77
Out Of Control!!
I normally use Fina which is the closest gas station to my house, or I use Texaco which is closest to work. I don't notice any difference between one and the other.
11-03-2002, 07:36 PM
#79
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02 C320 S.E., 02 BMW 330XI, 00 4Runner
Gas Station of Choice??
I fill up all my cars exclusively at shell based on a %5 discount. (Shell Mastercard from Chase) I've had one or two tanks of gas, where the car seemed to run poorly. The engine just doesn't seem to run as smoothly at idle etc.. What has been some of your experiences with the way your cars run, based on brand of gas. I know most stations get their gas form the same sources, but I would like to hear some others experiences.
Thanks,
Adam
Thanks,
Adam
11-03-2002, 07:55 PM
#81
MBWorld Fanatic!
In So Cal there are two brands that I always stay away from Shell and Arco. It's getting harder to do as Shell bought Texaco. I strive to fill up only at Chevron. As a second choice Mobile, 76, Texaco. Even if I'm forced into buying Shell, I'll only put in enough gas to get me to the next known gas station.
It's because on older classic cars (pre ecu) and motorcycles, Shell and Arco causes pinging in those vehicles. My neighbor managed a fleet of trucks and they switched from 76 to Arco and the cars start idle and running rougher, switched back and now they run fine.
It's because on older classic cars (pre ecu) and motorcycles, Shell and Arco causes pinging in those vehicles. My neighbor managed a fleet of trucks and they switched from 76 to Arco and the cars start idle and running rougher, switched back and now they run fine.
11-03-2002, 08:19 PM
#82
MBWorld Fanatic!
Re: Gas Station of Choice??
Originally posted by getchellad
I fill up all my cars exclusively at shell based on a %5 discount. (Shell Mastercard from Chase) I've had one or two tanks of gas, where the car seemed to run poorly. The engine just doesn't seem to run as smoothly at idle etc..
I fill up all my cars exclusively at shell based on a %5 discount. (Shell Mastercard from Chase) I've had one or two tanks of gas, where the car seemed to run poorly. The engine just doesn't seem to run as smoothly at idle etc..
11-03-2002, 08:25 PM
#83
I once read an interesting article by a chemical engineer employed by a major oil company. It is true that in most markets, all gas comes from one refinery or terminal. All the companies have additive packages which the tanker driver adds to the gasoline at delivery to the stations.
All companies's additives will cause deposits in the engine, but each package tends to remove those of other companies. He suggested using gasoline from a big name company and switch to another every 5000 miles, change between 4 or 5 companies.
All companies's additives will cause deposits in the engine, but each package tends to remove those of other companies. He suggested using gasoline from a big name company and switch to another every 5000 miles, change between 4 or 5 companies.
11-03-2002, 08:35 PM
#84
MBWorld Fanatic!
I worked a few years for 76 and I can tell you that most of the gasoline sold at 76 stations is processed in their own refineries, stored in their own terminals and sold at their gas stations. Each brand has their own terminals at least. Sure they have some remote locations like Hawaii were they get fuel from another vendor but that's not the norm. Same with Chevron, Shell and Arco which all have refineries in So Cal. My theory besides the additives Lynn mentions is where the oil comes from and it's purity.
As for winter formulations, most refiners change formulations about 8 times a year due to government mandated oxygenation levels and that varies from state to state even though there are federal regulations. Nothing we can do about that, all brands have to follow the same rules.
As for winter formulations, most refiners change formulations about 8 times a year due to government mandated oxygenation levels and that varies from state to state even though there are federal regulations. Nothing we can do about that, all brands have to follow the same rules.
11-03-2002, 08:58 PM
#86
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C230K
my car only gets chevron supreme, but that's because my dad owns the place.
every now and then, i'll add an extra bottle of techron to the mix.
We might get a 76. Trying to convince him to get the 100 octane or whatever their hightest octane is.
every now and then, i'll add an extra bottle of techron to the mix.
We might get a 76. Trying to convince him to get the 100 octane or whatever their hightest octane is.
11-03-2002, 10:11 PM
#89
Next weekend, helping my friend race is Audi A4, here in Daytona. Last time he was here, filled a 50 gallon drum of gas, 100 octane and it was almost $5.00 per gal. Now are you sure you would like to run 100 octane? If you are going road racing, it should help.
11-03-2002, 10:24 PM
#90
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2003 Citron Green C230KMT
Re: Re: Gas Station of Choice??
Originally posted by vadim
This could be as a result of their switch over to the winter gasoline formula.
This could be as a result of their switch over to the winter gasoline formula.
11-04-2002, 12:12 AM
#91
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02 C320 S.E., 02 BMW 330XI, 00 4Runner
Octane??
Out east, we have 93 octane. If I'm correct, they don't offer this is in CA. If everyones cars run fine on 91, am I wasting my money by always putting the premium octane in? I've read that if you put higher octane that what your car is engineered to run, your wasting your money.
11-04-2002, 01:39 AM
#94
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Originally posted by oggle
Where did you read this?
Where did you read this?
Erik
11-04-2002, 09:49 AM
#97
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In Oz I go to Shell only...they are the only service station that sells Optimax which has a 98 octane rating. I think there is also BP Ultimate but I've never tried it.
11-04-2002, 10:45 AM
#99
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2002 C240 6 spd manual
I only use Exxon or Mobil 93 octane. Could have something to do with the 10% employee discount...
Gasoline in it's base form is a commodity. Each oil company refines oil to gasoline to certain specifications. In theory, 93 octane from Exxon to Shell to Chevron should be the same. Some refineries operate to tighter tolerances than others, but in general 93 octane is 93 octane. The only difference in gasoline is the additive package. In some cases, the additive package is added just before the gasoline is loaded on to the truck. This permits multiple oil companies to use the same terminal. This is a common practice.
Hope you find the information useful.
Gasoline in it's base form is a commodity. Each oil company refines oil to gasoline to certain specifications. In theory, 93 octane from Exxon to Shell to Chevron should be the same. Some refineries operate to tighter tolerances than others, but in general 93 octane is 93 octane. The only difference in gasoline is the additive package. In some cases, the additive package is added just before the gasoline is loaded on to the truck. This permits multiple oil companies to use the same terminal. This is a common practice.
Hope you find the information useful.
11-04-2002, 11:48 AM
#100
MBWorld Fanatic!
One would think that 93 octane is the same across all brands but that's not necesssarily true. 93 octane is an average of research and motor octane. Each one is tested under different conditions. In some cases, the research octane is higher in one brand than another yet the R+M/2 octane number we see at the pump is the same. This accounts for some brands of gasoline like Chevron preventing detonation in my high compression engines as compared to brands such as Shell and Arco. This is not only from personal experience but working with the engineers and refinary people at previous jobs. And yes, fuel is sold in it's unbranded form on the commodities market and a lot of that is sold commercially. Most of the branded fuel you get at the pump was drilled, refined, stocked, delivered and sold under a perticular brand. That's not to say that some brands have agreements to sell each other's fuel in remote markets.
