Absolutly, unless your IP is noisy as hell, lubrisity won't quite down combustion/detonation noise. I still haven't seen the exact reason why plant oils and plant oil esters decrease detonation sound. I have seen it specualted that it's due to a lag in detonation and longer burn times.
Quote:
Originally Posted by ConnClark
Bio Diesel and veg oil have slightly lower energy and are slightly less combustible so you get less of a knock when they start to burn. This makes the engine run smoother. You get more BTUs from dino diesel hence the reason people tend to get slightly better milage from it.
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