Previous owner put 87 octane in my Formula. Ok or no?

**Bandit_LT1v8** · 12-02-2012, 01:17 AM

I just bought my Formula on 11/23 and the previous owner put 87 octane, and there is still 3/4 of a tank.

Should I just run this, and put 93 when I fill up, or should I somehow drain this out and put 93 now?

Why the hell would someone put 87 in an LT1? LOL

Any help appreciated. Thanks!

***popo8*** · 12-02-2012, 01:32 AM

I would not really worry about it , just dont thrash on the car...

If you want to make it a lil safer.... go top it off with the rest in whatever the highest (non leaded) octane you can find...

THen after you run through the next tank..... keep the good stuff in it.

My guess is he did it to sell it.....

**CamaroZGuy** · 12-02-2012, 01:33 AM

your fine, i have put 87 in mine before.

***popo8*** · 12-02-2012, 01:36 AM

Originally Posted by CamaroZGuy

your fine, i have put 87 in mine before.

On the same topic.... I had the vette out the other day (its really an 85 with a TPI engine) and I put the cheap shit in a nearly empty tank.... When I left the gas station I hammered on it to merge with the highway, I could actually hear the "rattling" or pinging ,and it huffed (cant tell what color it was cause it was dark) whatever you call it..... Took it easy for the next 250 miles till it was empty and filled up the good stuff on the way to work..... quiet power......and no huffin...

I was amazed that it was that obvious of a difference...

**CamaroZGuy** · 12-02-2012, 01:41 AM

i just try not to put E10 in, being in OK its still easy to find 100% gas...

(and i filled my truck at $3.05/gal)

**Sahara54** · 12-02-2012, 01:45 AM

Originally Posted by CamaroZGuy

i just try not to put E10 in, being in OK its still easy to find 100% gas...

(and i filled my truck at $3.05/gal)

It's not even available here...E10 only.

**Bandit_LT1v8** · 12-02-2012, 02:10 AM

Originally Posted by popo8

My guess is he did it to sell it.....

I am lucky because the First Owner took great care of this car, he owned it from 1994-2011. And I was told he had 2 other Trans Am's. So you know he probably knew alot about these cars.

The Second Owner had it for a year, and he only drove it to and from school and put less than 3k miles on it. He also put in 87 octane because he didnt know any better.

BTW, he sold it to me because he wanted to buy a honda. LOL

It's a good thing I bought the car from him, I saved it from becoming a riced out f-body!

***popo8*** · 12-02-2012, 02:28 AM

We thanku for saving her

Larry (Popo8) Co-owner
LTXtech.com

**Madman337** · 12-02-2012, 02:31 AM

I just putt mine around and run the mid grade gas in it. I try to take it easy on the old girl because its past the 253k mark now but I know an engine that is almost 11 to 1 does not like piss gas so when I do the engine swap ect it will be drinking the 91 octane that is available here.