Page 1 of 1

Running a gt on 98 octane.

PostPosted: Fri Oct 18, 2019 4:38 pm
by Stifull
I did try using "search" but there was 47 pages of results sooooo... I always run 98 in all our cars because that's what subaru recommend but my GT fuel tank says 95... It's 7 cents a liter cheaper and filling every fortnight with 98 will cost an extra $100 a year, so it's not a money issue and it's not gunna hurt the engine but is there anything else I should consider ???

Re: Running a gt on 98 octane.

PostPosted: Sat Oct 19, 2019 1:10 am
by LibertyTragic
I generally run 98 exclusively for the cleaning additives. I reckon it can only help with the non-direct injection EJ.

Re: Running a gt on 98 octane.

PostPosted: Sat Oct 19, 2019 10:34 am
by subyroo
I have used 98RON in all my cars, 2000 RX Liberty - 2003 XS Forester - 2013 Honda CRV and now my 2016 Honda CRV and never had any engine issues in any of the cars. I used E10 just once in my Forester and I flatly refuse to use it again, it was the most gutless car I have driven in my 3 score and 10. :wink: :wink:
The Forester had nearly 300,000 kms on it when my daughter took it over, she then sold it a couple of years later to a work friend for her son and he does Pizza deliveries and it's still on the OEM engine with no issues to my knowledge.

Re: Running a gt on 98 octane.

PostPosted: Sat Oct 19, 2019 1:23 pm
by spike2135
98 is the only fuel i use in all my cars and bikes

Re: Running a gt on 98 octane.

PostPosted: Sat Oct 19, 2019 2:22 pm
by Tonic
95 means 5% crap...
98 means 2% crap....

Also I find that I get better fuel economy out of the 98 which generally offsets the extra cost....

Re: Running a gt on 98 octane.

PostPosted: Sat Oct 19, 2019 2:50 pm
by BillyCorgi
Tonic wrote:95 means 5% crap...
98 means 2% crap....

Also I find that I get better fuel economy out of the 98 which generally offsets the extra cost....


I run E85 at 105 RON
Does that mean 5% negative crap??

Re: Running a gt on 98 octane.

PostPosted: Sat Oct 19, 2019 10:39 pm
by spike2135
BillyCorgi wrote:
Tonic wrote:95 means 5% crap...
98 means 2% crap....

Also I find that I get better fuel economy out of the 98 which generally offsets the extra cost....


I run E85 at 105 RON
Does that mean 5% negative crap??


haha +5%