98 RON
#1
Scooby Regular
Thread Starter
98 RON
Hi,
WRX STi Spec D 07/07.
It says on the inside of my filler cap to use 98 RON. I've never seen 98, only 97.
Is 98 RON a fuel they use in Japan?
I run mine on Esso 97 RON and had no problems. Is Shell Vpower 99?
My old 54 plate WRX STi UK blob with PPP ran better on 97 than 99 I always found. The 99 would seem to alter how it ran, almost like the timing was slightly out.
This was 5 years ago, and I remember Tesco 99 RON being 99p a litre lol.
WRX STi Spec D 07/07.
It says on the inside of my filler cap to use 98 RON. I've never seen 98, only 97.
Is 98 RON a fuel they use in Japan?
I run mine on Esso 97 RON and had no problems. Is Shell Vpower 99?
My old 54 plate WRX STi UK blob with PPP ran better on 97 than 99 I always found. The 99 would seem to alter how it ran, almost like the timing was slightly out.
This was 5 years ago, and I remember Tesco 99 RON being 99p a litre lol.
#6
Scooby Regular
Thread Starter
Filled up tonight with Shell V Power. Feels smoother running it on that rather than the 97 RON.
I can't see any change on the water temp guage, but would then engine run hotter or perhaps cooler with 99 instead of 97?
I can't see any change on the water temp guage, but would then engine run hotter or perhaps cooler with 99 instead of 97?
#7
I doubt you would notice any temp changes, Give it a couple of days for your ecu to re-learn because you have higher octane fuel and you may get a few more horses. It should stop your ecu from retarding the ignition if it were detecting det on 97ron which would cost some power.
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#8
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I doubt you would notice any temp changes, Give it a couple of days for your ecu to re-learn because you have higher octane fuel and you may get a few more horses. It should stop your ecu from retarding the ignition if it were detecting det on 97ron which would cost some power.
What is det?
#10
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