Which brand fuel works best

[jimlloyd40]

I was being an ass. Chevron is some of the worst gas in CA

Went right over my head.

 

[jimlloyd40]

There will never be a consensus as to which gasoline brand is the best.

 

[PowerDemon]

93 octane is 93 octane. Octane rating is directly related to knock resistance. A possible explanation is the Costco fuel is actually higher than 93 octane. Is your log showing you’re making more HP with the Costco fuel? This would mean the CPU is allowing more advanced timing.

I could care less about the infinitesimal gains given by 3 more degrees of timing on one cylinder due to better fuel. I am purely interested in getting my knock reduction as low as possible for the safety and longevity of my motor. And in my case the Costco gasoline produced less knock than the tank of 93 Shell gasoline that I had run earlier.

 

[Handguns4heaRTs]

Went right over my head.

It was an awful attempt at a joke. Story of my life.

 

[Handguns4heaRTs]

I could care less about the infinitesimal gains given by 3 more degrees of timing on one cylinder due to better fuel. I am purely interested in getting my knock reduction as low as possible for the safety and longevity of my motor. And in my case the Costco gasoline produced less knock than the tank of 93 Shell gasoline that I had run earlier.

FWIW, 3* of timing is not an “infinitesimal gain” in the least bit. That’s a LOT of extra power.

 

[jimlloyd40]

FWIW, 3* of timing is not an “infinitesimal gain” in the least bit. That’s a LOT of extra power.

Sure is. I picked up an additional 30 HP by using Torco octane booster mainly because the timing could be increased.

 

[Dervdave]

I know this has been debated in different places but having used supermarket diesel in my 2.0 GT I am sure that the brands, BP Shell and esso, give a bit higher mileage per gallon and the car runs smoother. What do others think?

Use the best diesel you can buy...... Shell V-Power if you intend keeping the car a while

 

[VDubberinDE]

Shell Nitro V-Power, never had any running issues. Use it in my M4 and R.

 

[PowerDemon]

FWIW, 3* of timing is not an “infinitesimal gain” in the least bit. That’s a LOT of extra power.

I said 3* of timing on an individual cylinder. The knock is not bad enough for the engine to pull overall timing. 3* of timing for the whole engine is a huge difference.

 

[david9962000]

Chevron is some of the worst gas in CA

I didn't know, why? I will switch to Shell. Merci.

 

[Handguns4heaRTs]

I didn't know, why? I will switch to Shell. Merci.

Two of the most popular tuners for the mk7 platform, who are both in CA have found that Shell provides the best quality 91(I realize this is like saying one is the coldest person in Hell) in terms of knock reduction, and allowable timing. One of the tuners has stated that he has repeatably found that Shell 91 allows for up to 4* more timing than Chevron, specifically.

 

[david9962000]

Two of the most popular tuners for the mk7 platform, who are both in CA have found that Shell provides the best quality 91(I realize this is like saying one is the coldest person in Hell) in terms of knock reduction, and allowable timing. One of the tuners has stated that he has repeatably found that Shell 91 allows for up to 4* more timing than Chevron, specifically.

What about cleaning additive? Techron is suppose to be one of the best.

 

[jimlloyd40]

What about cleaning additive? Techron is suppose to be one of the best.

From what I'm reading since you're in California get Shell and buy a bottle of Techron from a parts store. But Shell has cleaning agents in it also as do all Top Tier gasoline brands.

 

[mk7_bk]

the station that is used the most is usually a good one.

 

[dtran11]

Has anyone used gas at Woodman's? They have gas cheaper than Costco or Sams. Not sure if they are toptier or not