We just bought a new Gallant. We didn't notice until we opened gas door it says premium gas only. We have always had cars that run on low grade. I know my moms was tuned to run on regular can it be tuned to run on regular? Thanx
2007-08-22 10:46:23 · 9 answers · asked by MeMe 1 in Cars & Transportation ➔ Maintenance & Repairs
Nope. This is a higher compression engine. Running a lower octane fuel will cause pre-ignition. The computer will try to compensate for that by retarding the spark timing which will lower the performance of the car and give you less power and lousy gas mileage.
Rick
I'm a retired ASE Master/L-1 Technician. I still keep current with the latest automotive technology.
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2007-08-22 10:57:48 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Premium has nothing to do with gas mileage or performance. Your engine needs it because it a high compression motor. The computer will probably sense the low grade gas and keep the engine from knocking by retarding the ignition, but the engine won't be running very well. Use premium.
2007-08-22 19:01:09 · answer #2 · answered by Nomadd 7 · 0⤊ 0⤋
If it's the VR4, then ya you need to run premium to get the best performance. You can still run the lower grade since the ECU can compensate by retarding the timing but you performance will go down.
2007-08-22 17:53:19 · answer #3 · answered by turbocivic89 4 · 0⤊ 1⤋
afraid not, it's supposed to run on premium and anything less will damage the engine and your performance, you should have checked those things out before you bought the car.
2007-08-22 20:09:36 · answer #4 · answered by mister ss 7 · 0⤊ 0⤋
run the regular, if it runs the same you are good to go..if it runs bad stay with the premium
2007-08-22 18:00:27 · answer #5 · answered by fyea1 3 · 0⤊ 1⤋
No, you don't tune it to run on regular. Read the owner's manual for more insight into what they thought about it.
2007-08-22 17:54:48 · answer #6 · answered by Firebird 7 · 0⤊ 1⤋
No donna, if you don't put premium in it the engine will start to knock and diesel, and you will shave many years off the life of your car.
2007-08-22 17:53:52 · answer #7 · answered by Anonymous · 0⤊ 1⤋
most cars are pre set from the factory to perform their best
on premium fuels better gas mpg. track your mpg on both fuels and compare the numbers.
2007-08-22 18:16:57 · answer #8 · answered by munkey37129 2 · 0⤊ 1⤋
If you can afford a new car, suck it up and buy the good gas. It will last longer.
2007-08-22 17:53:27 · answer #9 · answered by mybuttstinks2001 5 · 0⤊ 1⤋