I was just curious as to whether or not these 3 where significantly different... Regular Unleaded Plus Unleaded Supreme Unleaded What type do you use and How often do you have problems with your vehicle? Specifically dealing with Engine. I don't mind spending extra, but if there is no difference then I dont see a point in spending. For the past 5 years and 3 vehicles I have used Regular, but since I have recently purchased a vehicle I was considering filling it with Premium or Supreme. I was going to choos the Title : WHAT DO YOU FILL HER UP WITH? but dont want to get banned or rookiefied!
the octane level is how much compression the fuel can take before combustion. it doesn't help your car much if you're car is designed for 87 and you're using 92. the brand makes a difference though because they use different types of detergents. i use Shell regular unleaded.
Shell Supreme or Plus depending on the price. My car needs that kind of gas, and the mpg gains I get are worth the extra money.
Are they significantly different... Regular is octane 87 Plus is octane 89 Super is octane 90+ a quick google produced this article on the value of high octane gasoline , which confirms most of what I understood, but with details. So, knowing what I've heard, and to excerpt that article, higher octane fuel does not improve mileage unless your car is designed to run on higher octane gas, which is rare. It also does not provide more "power." Higher octane measures the proportion of iso-octane to heptane in fuel, and relates to how much energy it takes to ignite said fuel. I guess most cars produce enough energy to ignite either equally. Exceptions? Cars with engines designed to take advantage of higher octanes will see better mileage and performance. Also, if your engine is knocking or pinging or sputtering, including when you turn it off, these are signs that your gas is not ingniting as it should, and using a higher octane can help that. All that said, basically, I used regular gas if I get it from a major brand, and if I go to a more generic place like a quickie mart or valero or something, I go ahead and spring for plus. From what I know and just read, it shouldn't matter, but somehow I trust that places like Shell and Chevron aren't bold face lying when they say they include some additives that burn cleaner, and that at those other places they don't do that, and maybe getting the higher octane there might help. Probably false, judging by the above article and data, but that's what I do anyway.
Jeep Grand Cherokee. Unless there's a sticker somewhere on your car that says "use premium fuel only", like my friend's prelude, you're wasting your money if you buy premium.
I'll have to check, If I am not mistaken it should say next to the gas cap, I drive a 06 Honda Accord
Regular. My car is old and doesn't require premium gas. It's been running fine on regular for the 11 years I've had it.
I've always been told it's not good to mix.. always fill up with the same octane. Could ceratinly be a myth, but I follow it.
When I drink soda, I get a lot of gas. When I drink natural apple flavored drinks, I get very stinky gas. And when I drink carbonated apple soda, naturally flavored (like Martinelli).... ... well that's just devastating.
FYI most gas stations get the mid-grade by mixing the lower and upper grades. Oh, and to answer the OP - put what your car manufacturer recommends and not lower. Don't bother putting higher octane than recommended - it's usually a waste of money.
Exactly what I was thinking. Cleverly Disguised way to get as many posts as possible. edit: oh ya....I use regular. I drive an F150 I got brand new in 2002....and it's at 48,567 miles.
I used Super until prices got jacked up. Now I find the cheapest regular possible...like Fuel Depot and Raceway.
The cheapest unleaded gas that Exxon/Mobil offers. Sometimes if I'm in a pinch, I'll hit up Valero for their cheapest unleaded gas.
