When do you need to use premium gasoline?
Happy Holidays to all Jeep folks around the world!
This forum is running a little slow, so I'll ask a question that has been puzzling me for many years, and no one has ever given me an answer that I believe or can understand. Maybe it was correctly explained to me, but I simply failed to understand. Or, maybe the person explaining didn't really know the answer either, and tried to BS through it. I'm certain the members of this forum can help me out with some real information..
At the gas pumps, there is "Regular", "Medium Grade", and "Premium" choices. Occasionally, there are even other choices. I have never understood when you need to use premium vs. regular gas, much less intermediate grades. In the past, I have tried premium vs. regular in several cars, but have never noticed a difference.
I've heard that the octane is different, as if that is supposed to answer everything. I have even noticed octane numbers posted on the pumps. I am an electrical engineer, and being told "the octane is different" doesn't really fill in the blanks for me. I need some real basic help on this one, so go easy on me with the answers.
So what is the answer? When is premium appropriate? What about mid-grade gas? Is it all a marketing scam (I don't really believe it's a scam...just kind of a rhetorical question)? Does the grade really make a difference, and if so, what is it? Is is a matter of what engine you are running, or is it a climate/altitude thing?
This is not a bogus question. I would really appreciate any help understanding what this is all about.
Thanks for the help.
"Pleased to meet you, hope you guess my name."