snapon Posted January 20, 2013 Share Posted January 20, 2013 Can u use hi octane fuel in the bajas for a bit more power or will it kill engine . I normaly use 95ron but just got a couple of quids worth of shell 98/99 ron ? Always used this fuel in my skylines and wrxs as they loved it lol Quote Link to comment Share on other sites More sharing options...
Mike1970 Posted January 20, 2013 Share Posted January 20, 2013 Fuels like shell V power, BP Ultimate and even tesco super are fine in these cars. Quote Link to comment Share on other sites More sharing options...
snapon Posted January 20, 2013 Author Share Posted January 20, 2013 Great as ive just mixed some with oil lol and sure i read somewhere dont go higher then 95ron Quote Link to comment Share on other sites More sharing options...
Rockhopper Posted January 20, 2013 Share Posted January 20, 2013 High octane ratings don't in themselves mean you will get more power. The octane rating of a fuel is simply a measure of its resistance to detonation so you need to increase the compression ratio of your engine to take advantage of the high octane. Its the compression ratio which determines the power in this case. Real cars have engine management computers and knock sensors, some cars are set up to use high octane fuels but for more there is no advantage as the ECU can only retard the ignition from its standard setting, not advance it until you get detonation. So, to sum up, the best fuel to use is the one that just avoids detonation. 1 Quote Link to comment Share on other sites More sharing options...
Carpmart Posted January 20, 2013 Share Posted January 20, 2013 Was going to reply but ^^^ above is perfect! 1 Quote Link to comment Share on other sites More sharing options...
FG Oli Posted January 20, 2013 Share Posted January 20, 2013 Reading through are you ok using standard petrol?? As that is what I use, And would you notice difference going to shell v power as that is all that my dads tvr runs on! Sorry for invading your thread mate Quote Link to comment Share on other sites More sharing options...
norcoforever Posted January 20, 2013 Share Posted January 20, 2013 Reading through are you ok using standard petrol?? As that is what I use, And would you notice difference going to shell v power as that is all that my dads tvr runs on! Sorry for invading your thread mate you may see a slight, and i mean slight improvement in performance but nothing to write home about. they are perfectly fine to run on 'standard' fuel bare in mind our fuel is more potent and of higher quality than standard fuel in the states and in the manual it will say to use standard 'gas' so you are already running it effectively on premium fuel Quote Link to comment Share on other sites More sharing options...
FG Oli Posted January 20, 2013 Share Posted January 20, 2013 you may see a slight, and i mean slight improvement in performance but nothing to write home about. they are perfectly fine to run on 'standard' fuel bare in mind our fuel is more potent and of higher quality than standard fuel in the states and in the manual it will say to use standard 'gas' so you are already running it effectively on premium fuel True thanks Quote Link to comment Share on other sites More sharing options...
Carpmart Posted January 20, 2013 Share Posted January 20, 2013 No improvement in performance from standard 95 Ron over 98 Ron UNLESS your running more compression. You can do this relatively easily by removing the head gasket and just using silicone or a thin copper gasket. You need to be very careful though and check squish or compression ratio CR. Too high compression and you'll get detonation, although the higher octane fuel will help with this. Anyway, the upshot is that running 98 over 95 will give ZERO increase in performance unless you change something else. BTW, the US grades its fuel differently to the UK, their 91 standard pump gas is not as poor quality as it sounds. 1 Quote Link to comment Share on other sites More sharing options...
Condor1201 Posted January 21, 2013 Share Posted January 21, 2013 As others have said you will not see a difference in using a higher octane fuel, the only way of getting more power is to reduce the amount of oil your using in with the mix - although i would'nt recommend that. Quote Link to comment Share on other sites More sharing options...
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