if I put premium grade gas in my car and then a couple days later put regular in, is that okay? is it bad for different grades from different brands to mix in your gas tank? can it cause damage?
2007-12-01 18:33:35 · 6 answers · asked by bella 2 in Cars & Transportation ➔ Maintenance & Repairs
Is it really a waste to put in high grade? I know nothing about cars but I was always told that regular isnt very good for your car and it runs out faster....
2007-12-01 18:43:40 · update #1
Ok doll, here's the story. Most cars can run on regular unleaded. Some need mid-grade or super to keep from pinging, also known as knocking or preignition, which is the rattling sound that comes from your engine under heavy acceleration, but not many. Gasoline is gasoline. In fact, the fuel that is delivered to the stations is either regular or super, and to get mid-grade, the two are mixed. It makes zero difference what brand you use, or if you mix regular and a higher grade. The only thing higher grades do is keep a car from pinging. Since higher octane fuel is more expensive, using it if you don't need it is a waste of money. There is no miles per gallon advantage or noticeable performance gain. The only damage that will result to your engine is if you need to run super to keep your engine from pinging and you run regular. Then all that pinging can damage the pistons. And unless your car has a high-compression engine or some kind of kick-*** supercharger or turbocharger, chances are regular is just fine.
2007-12-01 18:56:57 · answer #1 · answered by Me again 6 · 0⤊ 0⤋
The only time I put premium in a car is when it has a high performance engine or if it is going to be run in the cold weather. It doesn't hurt to mix grades or brands of gas because they are all pretty much the same. I would find one brand of gas and stick with it. Good luck.
2007-12-01 20:05:30 · answer #2 · answered by Bryan A 3 · 0⤊ 0⤋
In the old days, some engines required high octane gas, these days not so much as thay are made to run on regular gas.
Mixing won't hurt, but is a waste of money to buy the good stuff.
2007-12-01 18:37:52 · answer #3 · answered by Ronnie j 4 · 0⤊ 0⤋
Won't cause damage by mixing
Does it really need premium? It's not gonna help any extra if it is designed for regular.
If it really requires premium, regular gas will cause pinging and pre-detonation, and most newer cars will detect it and cut back on the timing and power to reduce the problem until you can get better gas again
2007-12-01 18:43:48 · answer #4 · answered by Jeffery H K 6 · 0⤊ 0⤋
it won't hurt it but it is a waste of money unless you have a high compression performance engine or a supercharged/turbocharged engine.
2007-12-01 19:47:33 · answer #5 · answered by wditt2 4 · 0⤊ 0⤋
No your fine,it dont matter.
2007-12-01 18:38:39 · answer #6 · answered by Anonymous · 1⤊ 0⤋