Octane Problems?

Question

Can anyone explain what problems might occur if a lower octane fuel is used in a JDM imported Celica GT4 with a racing spec engine. I am thinking it's tuned for 100 octane.

Answer 1

dont listen to them when they say you will destroy your car, you wont. but you will lose horse power and torque, not anything to worry about, just burns at a lower compretion level.

Answer 2

the octane in easy words,
high octane gasoline= more colder
low octane gasoline = less colder
when you have an engine that works at high temps like V8 and turbochargers engines will need more cold gasoline to prevent a quick ignition when it reach the cylinder
only high peformance engines 400HP+ will need high octane fuel
you can use 93 octange on your car with no problem

Answer 3

This would really apply to any engine. If you get "spark knock" when you step on the gas you need a higher octane. If not, whatever your using will be fine. Spark knock sounds like BB's rattling around in the engine when you accelerate and its not good for the engine.

Answer 4

over time you will suffer from performance. acceleration will be off. I know that fuel is very expensive right now. but to save a few coins at the pump could cost you serveral hundred dollars at the dealer at a later time.
re consider you position.

Answer 5

Internal destruction in a week or a year.

It's your car - destroy it how ya want to.

If I owned it I would only put what they say, or better.