High Octane Gas?
I have a 2014 2500 HD Ram with the 5.7 Hemi.. and have been putting reg gas in it. With the camping season upon us and towing every other weekend, should I be putting a higher octane in it? Will this ...
Forum Discussion
Turtle n Peeps wrote:
I'm confused? :h You were talking about BTU's and then in your last sentence you talk about burn rate. Those are two different things entirely.
LOL
Octane, Btu, Burn Rate all work together :)
Higher octane fuels have slightly less energy (Btu), BUT, have a slower burn rate which allows for higher compression through mechanical means, aka compression ratio, or artificial means, aka spark advance, and will generate more power from slightly less energy.
Damn that is a long run on sentence :)
going from 87 to 89 is not a bad thing, is only slightly more expensive. Especially in HOT weather while towing, might reduce some chances of spark knock and subsequent reduction in spark advance. Problem is when going all the way to 93 octane. I contend there are zero gains, and one will actually develop problems from premium on an engine designed to run on regular.
