ubyte Member 108 Member For: 21y 4m 26d Posted 26/07/05 11:45 AM Share Posted 26/07/05 11:45 AM Mines a stock T however I do notice a difference betweent the fuels... never tried dyno'ing to verify what I've found.* Shell Optimax - Great for economy however power seems to lack. Engine I find runs/sounds a little harsh* Shell pulp - Good for power and ecomony* BP Ultimate - Best for power and economy.* BP Pulp - Good for power and ecomony* Vortex 95 - Great for power and good for economy; however the engine seem to run/sound a little harsh* Vortex 98 ( expensive stuff when compared to the alternatives ie ulimate/etc) - good for power and ecomonyRuns/sounds a little harsh; it feels and sounds that the engine has to work a little harder to achieve that similar thrust in your seat power when compared to BP ultimate.However, whether or not the pertol companies like to admitt it or not, they can and do have 'bad' batches of petrol. Or dare I say "water-it" down (I.e. blend in methanol) ... Link to comment Share on other sites More sharing options...
XRfury Member 13 Member For: 19y 6m 10d Location: Townsville Posted 26/07/05 11:57 AM Share Posted 26/07/05 11:57 AM For the first 4 months of owning my T I just used normal unleaded.. Then I descided to change to BP Ultimate... I have definatley noticed Im gettin more Km out of a tank.. Im gettin 570-590 per fill up now.. But performance wise I havent noticed much..cikas <{POST_SNAPBACK}>Wow, I'm assuming you get 570-590 per tank with majority highway work??? I'm flat out getting 400 around town and about 500-550 on highway with my stock T (5sp man) running with BP ult (98) or Vortex (95). 1 Link to comment Share on other sites More sharing options...
cikas Team HgAg Member 616 Member For: 20y 2m 24d Location: Rockingham W.A Posted 26/07/05 12:03 PM Share Posted 26/07/05 12:03 PM For the first 4 months of owning my T I just used normal unleaded.. Then I descided to change to BP Ultimate... I have definatley noticed Im gettin more Km out of a tank.. Im gettin 570-590 per fill up now.. But performance wise I havent noticed much..cikas <{POST_SNAPBACK}>Wow, I'm assuming you get 570-590 per tank with majority highway work??? I'm flat out getting 400 around town and about 500-550 on highway with my stock T (5sp man) running with BP ult (98) or Vortex (95).<{POST_SNAPBACK}>I get those km's pretty much round town runs..Home to work etc and off to shops etc and including the odd flog.I got 2003 Auto and drive it normal Auto ( Not using adaptive shift )On about 10.5l/100 Hightest ive seen mine go upto is 12.1 and that was after a floggin on the cruisecikas Link to comment Share on other sites More sharing options...
XRfury Member 13 Member For: 19y 6m 10d Location: Townsville Posted 26/07/05 12:38 PM Share Posted 26/07/05 12:38 PM For the first 4 months of owning my T I just used normal unleaded.. Then I descided to change to BP Ultimate... I have definatley noticed Im gettin more Km out of a tank.. Im gettin 570-590 per fill up now.. But performance wise I havent noticed much..cikas <{POST_SNAPBACK}>Wow, I'm assuming you get 570-590 per tank with majority highway work??? I'm flat out getting 400 around town and about 500-550 on highway with my stock T (5sp man) running with BP ult (98) or Vortex (95).<{POST_SNAPBACK}>I get those km's pretty much round town runs..Home to work etc and off to shops etc and including the odd flog.I got 2003 Auto and drive it normal Auto ( Not using adaptive shift )On about 10.5l/100 Hightest ive seen mine go upto is 12.1 and that was after a floggin on the cruisecikas<{POST_SNAPBACK}>I wonder if the 2nd CAI and KnN filter is the fuel saving factor here...... Link to comment Share on other sites More sharing options...
Power The 'nice guy' Donating Members 314 Member For: 19y 9m 26d Gender: Male Location: Sydney (Area around Ryde) Posted 26/07/05 10:59 PM Share Posted 26/07/05 10:59 PM I use Caltex Vortex 98 exclusively, mainly becuase that's what the car was tuned with.I remain TOTALY unconvinced that it's necessarily the best buy and YES as some smart cookie wrote in this thread it is F---ING expensive compared to the alternatives. My wife keeps giving me these shopping dockets with 4c/litre (or whatever) off Caltex petrol, but every Caltex I've been to that accepts such dockets doesn't sell Vortex 98.....smart. Peak (meaning worst) fuel economy was 20L/100km +/- .3L/100km (see avatar) at around maybe 2,500km - perhaps 3,500km and this was from new, maybe 8km, so never reset.The problem here is Sydney traffic with 99% built up area driving and very low average speeds - say 32km/h - and a heavy foot.Since Phase II the economy according to my calculations by receipts and odomoter, and the tripmeter which seems strangely accurate despite the mods including 500cc/min injectors and dire warnings of inaccuracy, has improved with the same driving to about the 18.5L/100km range. Then again I swapped to Vortex 98 just before the mod so it must be the gas - lol. Link to comment Share on other sites More sharing options...
XR06T Silver Donating Members 4,146 Member For: 19y 7m 6d Gender: Male Posted 27/07/05 01:12 AM Share Posted 27/07/05 01:12 AM (edited) think you might be right on the k&n, cai point xrfury.. I have only ever got just over 500 outta a tank in my 03 5 speed..avg L/100k = 13.1. (this is with a mix of hwy/city, prolly 50-50)a cai and k&n helped on my old dunnydoor..I only use pulp now but a few tanks on ultimate98 didn't really affect mileage Edited 27/07/05 01:13 AM by XR06T Link to comment Share on other sites More sharing options...
RHR BOOST Moderating Team 5,698 Member For: 21y 4m 24d Gender: Male Location: Southern Highlands NSW Posted 28/07/05 05:17 AM Share Posted 28/07/05 05:17 AM I put in Mobil 8000 the other day.. They claim that its 98ron.. The car does not go anywhere near as well on 8000 that it does on Optimax or Ultimate. Best ive got on a why trip using Optimax is 10.4l/100. Had no problem with sootRevheadrobbo Link to comment Share on other sites More sharing options...
Paradoxx Colossal Member Member 5,049 Member For: 20y 5m 5d Gender: Male Location: Perth, WA Posted 28/07/05 05:54 AM Share Posted 28/07/05 05:54 AM Well on shell prem I get around 550km to a tank with mixed city and highway driving. If I use BP or Caltex it drops to well under 400 Link to comment Share on other sites More sharing options...
exar Member 187 Member For: 20y 10m 17d Posted 29/07/05 12:26 AM Share Posted 29/07/05 12:26 AM Well on shell prem I get around 550km to a tank with mixed city and highway driving. If I use BP or Caltex it drops to well under 400<{POST_SNAPBACK}>and they're all 98 RON? That's an astounding amount of difference!However, I get about 500 using Caltex Vortex (95 RON) anyway... Link to comment Share on other sites More sharing options...
-carty nutter Member 1,966 Member For: 21y 23d Location: Wagga Wagga Posted 29/07/05 01:47 AM Share Posted 29/07/05 01:47 AM our xr8 uses vortex, has never missed a beat and always has the power there Link to comment Share on other sites More sharing options...
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