Can I pump lower grade gasolines?

[kenji_s14]

kinda stupid question but i can't seem to find no freak'n 93 octane gasoline anywhere close by with all this gas shortage...I don't want to pump 87 or 89...but thats like the only available gas at the moment and im like very low on gas...Will it hurt if i pump 89 or 87 in my sr20det swap? i know im not gonna get the full benefit of power, but i just need gas untill 93 is available again..any sugestions would be helpfull....

[1990_Rb20_240]

i would say its prolly not the best idea i did the same thing with my RB swap and it started to backfire and do all sorts of weird shit! I wouldnt do it again! But thats your call man thats just my 2 cents!

[SidewayZ-s14]

91 octane.
Should be @ most gas stations.

[DJPimpFlex]

do a little research on pre-detonation and octane and make the decision for yourself.

[Sileighty_85]

Get the highest grade you can get and dump in some ocatane Booster and try not to boost too high

[98koukile]

octane booster for the short run, I wouldn't use it more than i had to

[Def]

Well, if there's no 93 around, then you have no choice. The guys out in Cali likely aren't aware of the gas shortages on the East coast.

FWIW, the only grades around there are 87/89/93.


If you did this, I'd try to find some 89 and turn the boost down as low as possible and generally stay out of boost at all times. It'll be fine to just cruise around on, but fill up with 93 at the first chance.

[timtiminy]

toluene... you can buy it at paint supply stores in gal quantities and its a proven octane booster. {(gallons of gas x original octane rating) + (gallons of toluene x 114)} / total gallons of gas/toluene mix = new octane rating
hope this helps so for 13 gallons of 89 mixed with 1 gallon of toluene it makes a about a 91 octane rating.

[UfoZ8myCow]

Shiiiit... I wish we had 93 out here in Cali. The only station I know of that has 93 is like 20 miles away. Everyone else has 91

[timtiminy]

10 gallons of 91 and 1 gallon of toluene comes to 93 octane for everyone that only has 91 available...

[SR20d2fourT]

Texas = 93 all daayy loonngg :)

I never put anything lower in my previous SR. Money, but oh well.
My ZX6R takes nothing but 93.

When it gets shitty gas it misfires and shitttt, it sucks.

[AznDrftr.]

yea i did that whole cheap as gas in my sr, bad move.

93 all day, shit better stop savin pennies. lol

[fliprayzin240sx]

I thought running toulene isnt the greatest idea. Atleast not in the long run. It fucks up your gas lines, seals and 02 sensor doesnt it?

[timtiminy]

you may want to try those cardlock/fleet fueling places i heard that anyone can get an account with them and in california some of them even have race gas and octanes over 91...

[kenji_s14]

well thanx for all the replies..it helped alot...i really have no choice..but to pump 89..and just not boost...hope its not gonna messed up...

[MudRacer]

good luck!

[boozels]

toluene... you can buy it at paint supply stores in gal quantities and its a proven octane booster. {(gallons of gas x original octane rating) + (gallons of toluene x 114)} / total gallons of gas/toluene mix = new octane rating
hope this helps so for 13 gallons of 89 mixed with 1 gallon of toluene it makes a about a 91 octane rating.

he speaks the truth
toluene works

that is what i would use if i was in the op's position

[Pank]

well thanx for all the replies..it helped alot...i really have no choice..but to pump 89..and just not boost...hope its not gonna messed up...

Your motor has an ecu and a knock sensor. stay off the gas hard and you'll be fine.