is a high octaine gas harmful to a 2013 ram 1500 5.7 hemi

Asked by Feb 13, 2017 at 06:25 PM about the 2013 Ram 1500 Outdoorsman Quad Cab 4WD

Question type: General

can I use racing fuel or a high octaine fuel in my truck

4 Answers

55,435

Why, it won't do anything except drain your wallet.

86,505

Racing fuel might be leaded so don't use that if it is.

55,435

Again....Why?

29,025

If it's 98 to 100 octane, it won't contain lead, the 110 octane would have the lead in it. It would only make sense if you had a high-compression engine, if your engine is 10:1 or so you would have to advance the timing to get any benefit from using racing fuel (@ 6.50/gal BTW) , but you have variable valve timing which is controlled by the PCM, so you would need that to be replaced by a tuned PCM. A lot of spending for so little gain.

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