Quote:
Originally posted by toneman
snoman--I understand completely where you're coming from; my point is that if your truck has engine knock issues when running on 87 octane even though the owners manual clearly states that it can and/or is supposed to run fine on 87, then one of the following two things must be true--either the manufacturer is lying, or there's something wrong with your engine. Pumping higher octane gas to fix/quiet engine knock does not eliminate either of these two possible truths...I mean, wouldn't you ask the dealer why an engine should knock when running on 87 octane if the friggin' manual explicitly states that it should be able to run fine on 87? Or do you just assume that everything that is stated in the owners manual is incorrect?:kidding:
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And just how badly do you think it would kill sales if they stated you must use 89 or better huh??? Unless your really have your head in the sand, when you have a modern high compression engine, you need more octane for it to run correctly and you are remind of that fact every time you fill up and see that there is atleast 2 other grades. If there was not need for it, it would not be sold. Poeple as a hole are too cheap to spend a extra 5 or 10 cents for better gas even though they will shell out over 30 grand for a truck and then complain it runs poorly on the cheapest gas there is.