Quote:
Originally Posted by 78w72
i use compatible to convey its rated & approved by the manufacturer for both diesel & gasoline engines... thats what the API rating means! remember that! & its recommended by anyone that knows about oil or engines in general... rotella-t has been recommended by engine builders for decades with zero problems. ive been using diesel oil in my classic pontiacs for 10+ years!
yes there are "stories" about diesel oil, just read this thread or many of the other threads on here & other forums... complete udder nonsense!
you must be the guy that posted the "high revs" thing earlier, where did you come up with that concept? a story you heard? there is no argument for that at all... diesel oil uses the same base stock oil as any other normal oils, therefore it can & will work exactly the same as "gasoline" oils. seriously, oils are not designed based on rpms, if it has an api rating it is "designed" for any normal rpm range. please show me where you got this "not designed for high rpm" mumbo jumbo.
edit: actually scratch that last part, if you seriously think or believe thats true, then its not worth wasting any more time on it. carry on.
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Right, because you know you don't have an argument. You're not arguing based on facts or established science, you just came up with something that sounds right to you and think it's an argument. Trouble is, gut feelings and reality are not always one and the same.
Prolonged high RPM operation results in much higher oil temperature, and motor oil breaks down exponentially faster with heat. No, of course the oil does not know the engine RPM, it is simply affected by the conditions under which it is used. High RPM and frequent heavy throttle break down oil much faster than regular street driving at lower RPM. This is the kind of common sense that you don't have to be a scientist to understand.
Even those with even the most basic understanding of the differences between oils know that synthetic oil has far superior ability to deal with heat, thus it is almost universally better at dealing with higher performance engines than a typical conventional oil. Since we're talking about stuff like Rotella and Delo, we're talking about conventional oils here. Yes, there absolutely are differences between different oils' ability to handle higher RPM operation. If you think otherwise just because you think oil isn't a tachometer, I can't help you.
If you want facts, you do research and read information from as many sources as possible. If you want to be stubborn and never learn anything new, you come up with something that sounds good in your own head and you stick to it regardless what anyone else says and whether or not it's true. Fact is, the science involved with motor oils is widely studied, widely understood and available for anyone who desires knowledge to persue and understand, most people just don't care, because they think they already know all there is to know. That's why every thread about oil always devolves into these dumb arguments and disagreements, where endless myths are spewed, misinformation runs rampant, and in the end nobody is any better off than they were before we started. Most people are just too stubborn to bother learning anything new, especially when their daddy told them something different 40 years ago, and we all know daddy was always right!