octane 91 for Corolla S? - Toyota Nation Forum : Toyota Car and Truck Forums

chichi71985 · 02-20-2005, 05:09 PM

hi, i always get 91 for my corolla S, but i was wondering is it really necessary? since its not really a powerful engine or what not, and i dont use it to race. so will octane 89 be suffice? thanks.

***REN69*** · 02-20-2005, 05:46 PM

As far as I know.. the only one they recommend 91+ octane fuel is the for the Corolla XRS. The other corollas will do fine on regular fuel.

CraigW · 02-20-2005, 05:56 PM

In warm weather I have to run 91 or I get spiking, This time of year I can get by on 87.

00 Corolla

polo708 · 02-21-2005, 10:04 AM

a stock S is made to run off of 87/89 octane... you are just wasting money.

majortom1981 · 02-22-2005, 07:26 AM

I live i nny were we have ethanol in our gase and also even worse in the winter.

If you live in ny by the city or long island i would say just get 89 but i dont know how our gas compares to another states. Gas here is at least 20 cents more than other states because of our gas.

I did notice better performance with 89 than 87. Havent tried 91

BlueRolla2002 · 02-22-2005, 09:13 AM

Polo is right. The Corolla is designed for 87 octane. They stressed that when I bought mine. Don't waste money on 89 or 91. Go with what the car was designed for. Correct me if I'm wrong, but I believe that 91 octane is only for high performance cars. Although I'm sure that some cars run better using 91.

***silver04rollas*** · 02-22-2005, 10:50 AM

From 05 Corolla manual:

2ZZ GE (XRS) - Minimum Octane 91 (Research Octane No. 96) or higher
1ZZ GE - Recommended Octane 87/89

You will not get any benefits from Octane 91 on your S so use Octane 87 or 89 since that is what the car is built to run on.