Ive always used Shell 87(I have a shell gas card), but lately since ive been running my car on empty, ive been running to the nearest gas station which is Arco. I heard switching gas is bad for a car, is that true?

 

Switching gas every time you fill up CAN be bad for your car, because different places will have different sediment levels and such in the tanks. Filling up in a few different places on a regular basis isn't going to hurt anything, unless you find a place with water or rust in the tanks.

People that are likely to have a problem with this are the bargain hunters that go to a different place every week because it'll save them 2 cents a gallon.

 

I run Shell as well. something terribly odd, is that, running on 93 octane makes the acr more peppy, the contrary of what most guys say here.... The car predetonates a lot on 87 octane and lacks power. This is more noticeable since I installed my Injen CAI

 

I generally fill up at whatever name-brand station is closest when I hit E. I don't go out of my way to find cheap gas (it's not worth the time and gas spent getting there!), but I do sometimes fill up at the cheapest gas station along my commute even when it means doing so a little above or below E.


What about the folks who fill up at a different gas station all the time because they run low on gas in different places? Should they plan out their driving so they always need a fill up at the same place each time?

Edit: Oh, and I use 87 octane of course. Even *if* 93 would give a small performance boost and wouldn't hurt the car, it still wouldn't be worth the money as far as I'm concerned. My car's usually fast enough for me, and in the rare circumstances when it's not a slight improvement wouldn't make much of a difference. I don't race though (track or street), so YMMV

 

I use what gas the car is supposed to use, 87 octane, running premium wont do a thing for our car other than eat through the catalytic converter faster and cost us more. And i fill up everywhere im able to get it, be it shell, amoco, exxon etc. Ive always done that on my past cars and never had a problem.

 

I usually fill up at the gas station that is closest to my house (Shell). Not that much more so I usually opt for 89 (Silver), even though it probably doesn't make that much of a difference.

 

a tad off topic but is octane booster bad for your engine (if added to 87 octane)

o yah... one more thing... one gas station i was at had 84 octane gas... my mom made the mistake of putting it in her camero. It ran like absolute crap. Make sure you dont make the same mistake. (dont just reach for the cheapest handel)

 

That's odd, I've never even seen a gas station with less than 87 octane. Wtf uses 84 octane?

 

I agree 100%. Gas is gas. If you really want info about fuel and the type of gas we get, the Discovery channel has this documentary about how oil is refined and how gas is manufactured. At the end they say that all gas/fuel are the same. Whether it be Shell,76, Cheveron etc. It's a good segment to watch. Like Sail said, you just might run into underground tanks that are not well maintained.

 

Hahah, I've never seen 84 either. That's hilarious.

 

sunoco 94 octane todays price 96.5 a L canadian. bone dry to fill up $40 will get around 450 klms i was told by a few old mechanics to use the good gas ,keeps injectors clean, sediment down (which i found not to be true different stations have different levels) better performance .i have never had any fuel problems with any of my cars.

 

i try to use sunoco when i am near it. but for the most part i use mobil 93

 

i usually use shell or chevron 87 but sometimes i put in 91. i don't feel any difference in power with my intake/exhaust on 91 but i do get better gas mileage by about 20-30 miles depening on my driving. i keep track of my mileage like a fiend.

 

You guys really shouldn't be running your cars to E. Just as tanks at gas stations get sediment at the bottom of their tanks so does your gas tank. When you run you car to the last bit of fuel in the tank you begin to start circulating through your engine all the dirt and other particles that have settled at the bottom of your tank.

Some other advice is to never fill up at a gas station that is having or has just had its tanks topped off by a tanker. During the filling process all that crap at the bottom of their tanks get stirred up and mixes in with the gas that you are pumping.

 

There is ABSOLUTELY NO BENEFIT to using a higher octane than your engine needs. The only benefit is increased profits to the oil companies.

Now modified with high comp pistons yes or RRM Piggyback and also the lucky people who have forced induction