Does Regular Gas Last Longer?

[Jacob]

I have always filled my tank with premium gasoline. However, this time I used regular (due to very high prices), and I have a feeling that the car is not drinking gas as fast as it used to do. So, does regular gas give you more miles?

Jacob

96’ LS400, 137k

[indiasfinest]

no, you get better performance and gas mileage w/ premium

[LEXIRX330]

no, you get better performance and gas mileage w/ premium

I really don't think that you will notice any immediate difference in your gas mileage regardless what you use. After years of driving you may get better mileage using premium, but I have never noticed any difference no matter what I have put in. This is assuming that your car does not call for premium.

[RFeldes]

I've made note of 17.9 average with premium around town and 15.9 with regular around town....so for 20 gallons I am losing 40 miles which equates to a little over 2 gallons or say $5.50 lost. So if premium is 20 cents more for 20 gallons that's $4.00. So, for me, premium is cheaper.

[Jacob]

Thanks everyone.... I hope my fuel gauge is ok :)

[LEXIRX330]

I've made note of 17.9 average with premium around town and 15.9 with regular around town....so for 20 gallons I am losing 40 miles which equates to a little over 2 gallons or say $5.50 lost. So if premium is 20 cents more for 20 gallons that's $4.00. So, for me, premium is cheaper.

RF-

Does your vehicle require premium gas though??? If so maybe that is why...

[RFeldes]

I've made note of 17.9 average with premium around town and 15.9 with regular around town....so for 20 gallons I am losing 40 miles which equates to a little over 2 gallons or say $5.50 lost. So if premium is 20 cents more for 20 gallons that's $4.00. So, for me, premium is cheaper.

RF-

Does your vehicle require premium gas though??? If so maybe that is why...

All 400 and 430's require premium. ;)

[LEXIRX330]

I've made note of 17.9 average with premium around town and 15.9 with regular around town....so for 20 gallons I am losing 40 miles which equates to a little over 2 gallons or say $5.50 lost. So if premium is 20 cents more for 20 gallons that's $4.00. So, for me, premium is cheaper.

RF-

Does your vehicle require premium gas though??? If so maybe that is why...

All 400 and 430's require premium. ;)

That is what I thought. Why would you put anything else in it?

[Lexusfreak]

no, you get better performance and gas mileage w/ premium

Agreed, hands down. B)

[AussiLS400]

Just to put a small twist to this....Just maybe the regular gas you are using has a mix of ethanol in it which is capable of extending mileage. Small gas stations sometimes add this to extend supplies. Up to 10% is ok but placed in larger % can lead to engine and related problems. I always use premium all the time.