Paulstevo Posted August 1, 2007 Report Share Posted August 1, 2007 Was informed by another member on here that best fuel to use for A4 1.8T etc was Shell Optimax this gave slight increase in BHP... Shell now have new fuel that looks like it is the replacement for Optimax called V-Power .. Any one using this fuel or can clarify that it is best fuel to be using..(as it is the most expensive on the forecourt) Link to comment Share on other sites More sharing options...
PetrolDave Posted August 2, 2007 Report Share Posted August 2, 2007 Read the label on the fuel filler flap and the information in the owners manual. For example, for the RS4 it says 98 RON should be used, but 95 RON can be used "in emergencies" and 91 RON should never be used. If 98RON is recommended then V-Power (the new name for Optimax) is felt by many (most?) to be "the best". There's one other advantage using 98RON fuel with FSI engines - 98RON petrol is usually lower sulphur than 95RON petrol so the FSI engine has to do less frequent purge cycles to remove the trapped sulphur by-products from the cat. Result? - approx 10% better mpg. So if you pay less than 10% more for 98RON compared to 95RON it will actually cost you less to run your car because of the better mpg you will be getting! I take an 8 mile round trip to the nearest Shell garage to fill up with V-Power... Link to comment Share on other sites More sharing options...
Risky Posted August 2, 2007 Report Share Posted August 2, 2007 [ QUOTE ] There's one other advantage using 98RON fuel with FSI engines - 98RON petrol is usually lower sulphur than 95RON petrol so the FSI engine has to do less frequent purge cycles to remove the trapped sulphur by-products from the cat. Result? - approx 10% better mpg. So if you pay less than 10% more for 98RON compared to 95RON it will actually cost you less to run your car because of the better mpg you will be getting! [/ QUOTE ] Very interesting. with a thirsty 4.2FSI to feed I might have to consider this. Link to comment Share on other sites More sharing options...
PetrolDave Posted August 2, 2007 Report Share Posted August 2, 2007 [ QUOTE ] Very interesting. with a thirsty 4.2FSI to feed I might have to consider this. [/ QUOTE ] That's why I use V-Power - I have a thirsty RS4 to "feed"!!! Link to comment Share on other sites More sharing options...
Cupramax Posted August 2, 2007 Report Share Posted August 2, 2007 [ QUOTE ] Was informed by another member on here that best fuel to use for A4 1.8T etc was Shell Optimax this gave slight increase in BHP... [/ QUOTE ] Not entirely true, using 95 gives a slight drop in performance, using the correct fuel i.e 98 produces the stated output for the engine. This has been discussed several zillion times on here, just do a search on Optimax. Link to comment Share on other sites More sharing options...
shao_khan Posted August 2, 2007 Report Share Posted August 2, 2007 My 1.8T sport 190 when used for comuting would give significantly better range on Optimax than 95. 200miles round trip mainly motorways, the car would return 550 miles from a tank, never quite got 600. Link to comment Share on other sites More sharing options...
Paulstevo Posted August 2, 2007 Author Report Share Posted August 2, 2007 looks like V power it is then.. Thanks for info.. Link to comment Share on other sites More sharing options...
JamieSelway Posted August 3, 2007 Report Share Posted August 3, 2007 Tesco 99RON does it for me! I ran V-Power/Optimax for 2 months, then reset all my gauges and did the same for the Tesco stuff, got .5mpg more with Tesco (Clubcard points, and a few pence per litre cheaper too ) There was a post on here linking to some indepth study on which fuels are best, and Tesco came out top.(Will search and post the link if I can find it) Link to comment Share on other sites More sharing options...
shao_khan Posted August 3, 2007 Report Share Posted August 3, 2007 I use Tesco 99 as well - depends what I am near. I have read a few stories regarding the Bio-ethanol content of tesco fuel being bad for your engine, but not sure if its fact or not. Link to comment Share on other sites More sharing options...
JamieSelway Posted August 3, 2007 Report Share Posted August 3, 2007 Found it! Credit to Avus-Bub Fuel Comparison post Link to comment Share on other sites More sharing options...
Paulstevo Posted August 6, 2007 Author Report Share Posted August 6, 2007 Found this link explains The V Power fuel in more detail... http://www.pistonheads.com/gassing/topic.asp?f=57&t=301028 Also another fuel BP Ultimate 102 limited filling stations http://www.pistonheads.com/news/default.asp?storyId=13729 Link to comment Share on other sites More sharing options...
shao_khan Posted August 10, 2007 Report Share Posted August 10, 2007 Yeah the BP 102 stuff - there is one station around me that sells that - double the price of normal super - and BP super isnt cheap. Link to comment Share on other sites More sharing options...
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