Question about Fuel Type...
Re: Question about Fuel Type...
i was told by a family friend (1 of the top mechanics at a jeep/dodge dealer) that i would not notice very little if any at all if i didnt use premium, unless im out racing or driving the **** out of it. But however ask 3 mechanics get 3 different answers , so who knows.
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Location: Alexandria, Kentucky
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Re: Question about Fuel Type...
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
Just my humble opinion.
Jim
Re: Question about Fuel Type...
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
Just my humble opinion.
Jim
Last edited by onehundred80; 03-13-2019 at 01:15 PM. Reason: octane was 93
Re: Question about Fuel Type...
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 93 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.
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Re: Question about Fuel Type...
As long as you run fresh 93 fuel with ethanol regularly, it shouldn't be a problem. The problem is when Ethanol sits for a long period and absorbs water out of the atmosphere. I personally would choose the 90 w/o Ethanol and add 16 to 24oz. of Torco accelerator to a tankful to bump up the octane a bit, because mine sits for very long periods between use. The downside is that it adds $10.-$15. per tank. So if you daily drive it, you may not want to spend the extra money. When I occasionally track the car, I add an entire quart to tank. Or I use the Ethanol free race gas at the track; and I DO notice the difference. As I understand it, the extra octane is also good insurance for not going lean @ w.o.t. . You'd be fine with just 90 w/o ethanol. Or use the 93, and then fill it up with Ethanol free if it gets put away for the winter. I sure wish we had 93 Ethanol free here for daily use!
Last edited by dinasrt; 03-13-2019 at 01:27 PM. Reason: added info.
Re: Question about Fuel Type...
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