Re: Question about Fuel Type...
Originally Posted by
Jim Holian
A lot of people only have 89 and 91 octane available. I think they use the 91 octane. I have 93 octane available in my local so that's what I use. It has much more ingredients to fight sludge, carbon buildup, engine knock, and so on, so for as little as I drive my XF, I prefer to use the 93. Shell V-POWER. I also only buy my gas at a Shell station. Some other brands may be just as good but, again, my preference is for Shell 93 octane. The car runs beautifully, has not met a hill that it can't level, and the exhaust pipes are very clean. I also use one of Needswings oil catch cans. Everybody should have those on their engine. Car runs much better.
Just my humble opinion.
Jim
I suspect the effect of the oil catch can is imagined, it does stop oil going into the engine though. I would imagine that regular and super gas has just the same additives to keep the engine clean. I use Shell 91 octane as it has no ethanol in it. I doubt I could tell the difference between 89 and 93 octane fuel in a blind test.
Last edited by onehundred80; Mar 13, 2019 at 01:15 PM.
Reason: octane was 93