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Originally Posted by KTMNealio
You would need a higher compression ratio to take advantage of the higher octane fuel. Just advancing the timing a little isn't going to make much difference.
- Nealio
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Not true. High compression engines REQUIRE premium fuel, but lower compression engines will benefit from premium use if they have a knock sensor...as explained.
Also, someone mentioned needing higher compression to ignite premium fuel. Also not true. This is diesel you're talking about. Gasoline is spark ignited, it's not ignited by compression.
I just found the article interesting and backs up what I've said all along......the titan (as do most any current knock sensor controlled vehicle) has more get-up-and-go while using premium fuel. It's up to the user to decide if it's worth the extra .25-.35 cents a gallon.