"Premium Gas"
Re: "Premium Gas"
I can't believe this subject is still alive. All MB engines I have owned have required prem. so this is just a fact of purchasing a nicer car...we are talking about pennies between the fuel types.. If a person is still thinking about using lower octane fuel to save a quarter or two, a trade-in for a Chevy Aveo, Kia Rio, etc. should also be in there future...
Last edited by respdoc; 10-12-2005 at 12:30 AM.
Re: "Premium Gas"
Originally Posted by rpr1bob
My dealer said, you can use the mid-grade with no bad effects as long as you are at sea level.
San Diego Bob
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Re: "Premium Gas"
Originally Posted by Hobbymanbill
Your dealer is an IDIOT.
I would tend to trust the word of the guys that designed the engine over the word of your dealer. If he says its OK to burn cheap gas in your Crossfire I would ask him to quote a technical reference from DC that says its OK to do so.
Re: "Premium Gas"
Originally Posted by kmag50
Since we are on the subject of FUEL...I always use Shell premium in my Crossfire. What does everyone else use and I assume that Shell is good gas...am I right?
I have always heard, and believe, the condition of the storage fuel tanks at each gas station (meaning older tanks are more prone to some breakdown in the tank lining leading to deposits being injected into your car's fuel tank) play a greater role then is Techron better than Brand X's additives.
Last edited by respdoc; 10-13-2005 at 03:38 PM.
Re: "Premium Gas"
Originally Posted by kmag50
Since we are on the subject of FUEL...I always use Shell premium in my Crossfire. What does everyone else use and I assume that Shell is good gas...am I right?
Last edited by Rob M; 10-14-2005 at 01:43 PM.
Re: "Premium Gas"
Actually respdoc & rob m are both right, current fuels have little to do with brand names and are greatly influenced by the refinery they were produced in, the tanks they were stored and transported in, and the age and condition of the underground tanks in the station from which we buy them. If it makes you feel better to purchase fuel from a particular supplier that's fine. Personally I buy from the lowest cost supplier with the newest station, because I know that gas bought on the spot market and pumped through a newer station with the lowest price in the area, will get a higher throughput and therefore have less chance to get contaminated.
Re: "Premium Gas"
Car And Driver just had an article concerning the quality of different gasoline's. A new program called Top Tier Gas.
http://toptiergas.com/
TOP TIER Gasoline Retailers:
TOP TIER Gasoline Retailers:
QuikTrip
Chevron
Sunoco
Phillips
76
Shell
Entec Stations
MFA Oil Company
Kwik Trip/Kwik Star
The Somerset Refinery, Inc.
Comments/opinions?
http://toptiergas.com/
TOP TIER Gasoline Retailers:
TOP TIER Gasoline Retailers:
QuikTrip
Chevron
Sunoco
Phillips
76
Shell
Entec Stations
MFA Oil Company
Kwik Trip/Kwik Star
The Somerset Refinery, Inc.
Comments/opinions?
Re: "Premium Gas"
I don't see where it's worth risking mechanical issues and decreased mileage when it's only about $2 more for 10 gallons of gas when you buy premium over regular. Considering it's been my experience that running premium fuel gives better mileage and runs more efficiently I think it's worth it. Not to mention the manufacturer wouldn't have recommended it as the minimum if you'd get the best performance from a lower grade gas. Just my two cents though.
Re: "Premium Gas"
...if we keep this thread alive long enough, it could turn into an experiment. Lets just wait and see how many people (who insist on running the cheap 87 octane fuel) drop out of our club, due to knock-related engine damage, blame DC for building a POS, and sell it in a mad huff for some Toyota or any car. For me, I won't risk it. If I can afford a high end sports car, then I can afford to put the correct fuel in it. For you braver (cheaper?) souls out there, let us know how it works out for you in the end for you, okay? Those who laugh last, laugh the hardest.
Re: "Premium Gas"
The only problem I have using 91+ octane fuel is finding it in mid-Missouri. There is only one station in a reasonable distance from the house that sells 91 octane. Most of the others only have 87 and 89 octane available (I don't count that most also sell diesel which is REALLY HIGH OCTANE).
Re: "Premium Gas"
Originally Posted by RickB
The only problem I have using 91+ octane fuel is finding it in mid-Missouri. There is only one station in a reasonable distance from the house that sells 91 octane. Most of the others only have 87 and 89 octane available (I don't count that most also sell diesel which is REALLY HIGH OCTANE).
Re: "Premium Gas"
It's really a simple fix guys. http://www.elektro.com/~audi/audi/toluene.html
We've been doing this for years in all of our race cars that run high boost...
We've been doing this for years in all of our race cars that run high boost...
Last edited by HDDP; 10-17-2005 at 01:34 AM.
Re: "Premium Gas"
Originally Posted by HDDP
Oh Boy, you'll get alot of debate over this one. Especially when it comes to pre-firing caused by lower octane and the engine parts that will fail with repeated pre-firing... Get ready for some serious engine repair at 50,000 +/- miles.
...
...
Or is this just a Crossfire characteristic?
Re: "Premium Gas"
Originally Posted by TXLapDog
Wow, this is all really good to know! Let's see here, I have about 125,000 miles on my Audi A6 and have used regular since day one. So by your calculations I am overdue for 2.5 engine rebuilds!
Or is this just a Crossfire characteristic?
Or is this just a Crossfire characteristic?
Re: "Premium Gas"
Originally Posted by juddz
...if we keep this thread alive long enough, it could turn into an experiment. Lets just wait and see how many people (who insist on running the cheap 87 octane fuel) drop out of our club, due to knock-related engine damage, blame DC for building a POS, and sell it in a mad huff for some Toyota or any car. For me, I won't risk it. If I can afford a high end sports car, then I can afford to put the correct fuel in it. For you braver (cheaper?) souls out there, let us know how it works out for you in the end for you, okay? Those who laugh last, laugh the hardest.