Hi all

I have always put shell vmax in my frs mk1. Now I noticed in the handbook it says to use 97ron fuels I guess as a minimum. Question is if I needed to use 97 on the odd occasion will it confuse the ecu and make it run bad? My car is bog standard so wasn't sure. I don't want to ever run the risk of being cut short

Cheers

 

Yes, it is for high performance cars, if you run it on 95 it can damage the engine!

You can put it in a 'normal' car without an issue, although you won't get any gains from it, but you can't go the other way on car that is mapped for it.

Martin

 

She'll vmax is 99 Ron, so if I had to put 97 in would that be ok?

 

So the flap says use 97 RON minimum, and you're asking if it's safe to use 97 RON ?

Isnt that sort of self explanatory ?

 

Lol. Just going from 99 to 97 isn't harmful no?

 

Not sure if trolling or...

 

No, it's fine.

Rick

 

Tbh most uk fuels exceed minimum Ron levels, I know someone who used to put supermarket fuel in his mk2 focus RS.

 

yes of course it is. the car will explode and everyone within a 2 mile radius will die.

 

Can always count on you for the sensible reply

 

he started it with his sensible question.

 

PMSL good reply !!!

 

Lol

 

The Octane rating or octane number is a standard measure of the performance of a motor or aviation fuel. The higher the octane number, the more compression the fuel can withstand before detonating. In broad terms, fuels with a higher octane rating are used in high-compression engines that generally have higher performance. Remember the air is already compressed by the turbo in forced induction engines. so there is a multiplier effect!

This means the higher the number the more the fuel can resist "pinking" (pre-ignition) and this very quickly destroys engines!

 

C'mon we already have the world forum master silly question asker on here! We don't need any contenders!

 

Brendan... good answer

Chop... lol.