C43 best gas to use?
03-12-2019, 12:31 PM
#29
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Join Date: Sep 2017
Location: North East
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2017 AMG C43, AWE Touring, BMC Air Filters- 2015 BMW X3 3.5i (JB1 Equipped)
Be careful because race gas is designed for off road track use, a lot of the time it is leaded instead of unleaded to accommodate Hi po, high compression race engine designs from the late 60's
03-17-2019, 07:06 PM
#30
In the nyc metro area we are stuck with 10%. Alcohol is for drinking, NOT driving.....Closest full gas stations are in New Paltz NY, Stewarts, Premium.... and not dutchess county, Ulster only
05-11-2019, 11:07 AM
#31
You have to figure out what's the best around your area, around me Shell and Sunoco are the best. While there is a Costco around me and I often use it, my evo knocks with it, but not with Shell or Sunoco. If I'm planning to go to the track, I avoid Costco.
Another thing to avoid, don't ever top your car with a couple of gallons, especially from a pump that uses a single hose for all the octanes. One time I was heading to the dyno to get the evo tuned. On the way there, I noticed I was low on gas and decided to top it with a "couple of 93 gallons". At the dyno, the car was knocking like crazy on the base tune. The tuner asked me what kind of gas I had in it, when I told that I topped it on the way, he advised me to never do that. Basically, when you use the single hose, you're getting around ~ a gallon ~ of whatever the guy before you used and there is a good chance it was 87 octane.
Another thing to avoid, don't ever top your car with a couple of gallons, especially from a pump that uses a single hose for all the octanes. One time I was heading to the dyno to get the evo tuned. On the way there, I noticed I was low on gas and decided to top it with a "couple of 93 gallons". At the dyno, the car was knocking like crazy on the base tune. The tuner asked me what kind of gas I had in it, when I told that I topped it on the way, he advised me to never do that. Basically, when you use the single hose, you're getting around ~ a gallon ~ of whatever the guy before you used and there is a good chance it was 87 octane.
05-11-2019, 06:42 PM
#32
I put pure race gas in my car, the entire tank. It’s not my daily but I fill it up without blending it. 100 octane unleaded at a local gas station. It’s takes about $150 for the tank. Car is tuned with catless dp’s.
