Danny Boy Posted June 10, 2003 Report Posted June 10, 2003 I've been reliably informed that Shell Optimax reduces fuel consumption....but before I try it out i've been advised to check my car manual to see what fuel is recomended. I've not got a manual!! Can anyone tell me what it says if Octane 98 fuel is recomended (Optimax Level??) Cheers Quote
Guest martinkerr Posted June 10, 2003 Report Posted June 10, 2003 i have a 95 gal, manual say it will run happy on 98 octane martin Quote
asimons Posted June 10, 2003 Report Posted June 10, 2003 I have a diesel galaxy, so that doesn't help, but I used to put Optimax in my petrol-engined Zafira. The fuel consumption was always pretty poor, and variable, and Optimax not always available, but I believe I did see a real improvement when I ran on several consecutive tanks of Optimax. Whether the improvement was as much as the 5% more that Optimax costs is another matter. It might have been, but my sample was not statistically significant. I reckoned it was pretty much cost neutral, as a gut feeling. Whatever, it won't do your engine any harm, the other good things it offers may enhacne engine life, so it's worth a try. HTH Aid Quote
Guest VW Infiltrator Posted June 13, 2003 Report Posted June 13, 2003 The handbook for our '96 Sharan VR6 says that we can use 95 or 98 Octane and whilst the published power figure for each is similar the handbook lists a slightly higher torque figure when using 98 octane. On journeys we have recorded about 1.5mpg more with Optimax. Does anyone know its octane rating? Richard Quote
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