Goobz Member 746 Member For: 20y 2m Location: Sutherland Shire, Sydney Posted 16/06/05 08:12 AM Share Posted 16/06/05 08:12 AM BP Ultimate or Mobil Synergy 8000 here. Don't like optimax as I've heard its only 96RON now, and the car always seems to run crap when I use it. Yet to try Vortex 98...Chris Link to comment Share on other sites More sharing options...
Swanga Benzene Member 432 Member For: 20y 6m 8d Gender: Male Location: Out West Posted 16/06/05 08:28 AM Share Posted 16/06/05 08:28 AM Does anyone find that some fuels spit a bit of crap out onto the bumper and some dont or some are worse than others??Im actually running some different fuel tests atm, I'll let you know how I go Link to comment Share on other sites More sharing options...
dingah2 Crusty aviator Member 846 Member For: 20y 5m 22d Gender: Male Location: ACT Posted 16/06/05 08:32 AM Share Posted 16/06/05 08:32 AM Yup that's why Optimax is often referred to as Optisoot. Too much detergent content and a black arse.Dingah Link to comment Share on other sites More sharing options...
mbjunior99 Member 4,359 Member For: 21y 11m 18d Gender: Male Location: Brisbane Posted 16/06/05 08:41 AM Share Posted 16/06/05 08:41 AM I allways use optimax and my average fuel consumption in the Boss is 21.2 L/100 <{POST_SNAPBACK}>I need to try harder. Mine is only sitting at 18 L/100!! Link to comment Share on other sites More sharing options...
axr-jet Donating Members 316 Member For: 20y 3m 22d Gender: Male Location: Melbourne Sth/East Posted 16/06/05 09:50 AM Share Posted 16/06/05 09:50 AM In have always used optimax,but lately I have used BP Ultimate and have found it to be better.I no what you meen about the black arse I am for ever cleaning that black shooty sh*t in optimax off my nice and shiny APS exhaust MmmmmmAPS exhaust I get 10.8L/100 JET. Link to comment Share on other sites More sharing options...
cikas Team HgAg Member 616 Member For: 20y 1m 6d Location: Rockingham W.A Posted 16/06/05 09:58 AM Share Posted 16/06/05 09:58 AM Only Use BP Ultimate Link to comment Share on other sites More sharing options...
Power The 'nice guy' Donating Members 314 Member For: 19y 8m 9d Gender: Male Location: Sydney (Area around Ryde) Posted 16/06/05 10:20 AM Share Posted 16/06/05 10:20 AM Funny, I was reading a bunch of forum links elsewhere on exactly this subject a couple of days back.The concensus, for what it's worth, was that most critisice Shell's Optimax - which I've always used with the T. Main critisicm was that they all beleived Optimax was not a 'refined' 98RON but rather had additives to acheive this number - the point being they all said that it was the most variable RON and that the extra additives including whatever boosted the Research Octane Number sort of evaporated easily and quickly, perhaps even whilst sitting in your tank.Most prefer any other 98RON.Apparently, and the Caltex website *seems* to back this up, their Vortex 98 (not Vortex that's just 95RON) is a minimum 98RON wheras all others are an average 98RON.The usual experts on the other forums claimed they knew this to be a fact as well.Anyway, was 2K's from dry and filled to the brim with Caltex Vortex 98 and subjectively I felt it might, maybe, be better. Sure cost a lot more. Link to comment Share on other sites More sharing options...
Goldbullet Member 883 Member For: 19y 8m 17d Location: Frankston Posted 16/06/05 10:35 AM Share Posted 16/06/05 10:35 AM Funny, I was reading a bunch of forum links elsewhere on exactly this subject a couple of days back.The concensus, for what it's worth, was that most critisice Shell's Optimax - which I've always used with the T. Main critisicm was that they all beleived Optimax was not a 'refined' 98RON but rather had additives to acheive this number - the point being they all said that it was the most variable RON and that the extra additives including whatever boosted the Research Octane Number sort of evaporated easily and quickly, perhaps even whilst sitting in your tank.Most prefer any other 98RON.Apparently, and the Caltex website *seems* to back this up, their Vortex 98 (not Vortex that's just 95RON) is a minimum 98RON wheras all others are an average 98RON.The usual experts on the other forums claimed they knew this to be a fact as well.Anyway, was 2K's from dry and filled to the brim with Caltex Vortex 98 and subjectively I felt it might, maybe, be better. Sure cost a lot more. <{POST_SNAPBACK}>Yep I used optimax till my next fill up going to bp I think and I only average 300klm to a tank Link to comment Share on other sites More sharing options...
XR6T-riffic Member 121 Member For: 20y 7m 13d Location: Penrith NSW Posted 16/06/05 10:43 AM Share Posted 16/06/05 10:43 AM Only Use BP Ultimate <{POST_SNAPBACK}>same here Link to comment Share on other sites More sharing options...
Guest Guests Posted 16/06/05 10:45 AM Share Posted 16/06/05 10:45 AM I always use BP Ultimate 98 in my XR8 Link to comment Share on other sites More sharing options...
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