Mazda Mx5 + Clio 172
Right heres a puzzler......
For starters we all know Renault reccomend 98 Ron fuel for the 172/182.... now usually I fill mine with Super Plus from Sainsburys (97 Ron btw) and get damn good fuel economy. Last week however I had reason to fill up at a Tesco with there Super Plus (99 Ron). In the last week since filling up at Tesco my fuel economy and the general feel of the car has been AWFUL, drinking fuel like an alcoholic and feeling very listless.
Heres the weird bit..... filled her up from nearly empty today with teh Sainsburys fuel, and suddenly she is running at 38mpg again! (So far anyway!!!) Can a difference in fuel REALLY make such a difference?? I know putting crap normal fuel in makes them rather listless, but I am wondering whether the Tesco one was TOO rich being 99 Ron? Either way I will only use the Sainsbury fuel (which is 2p cheaper a litre too) but was really just wondering what fuel anyone else uses or if anyone has had a similar experience?
For starters we all know Renault reccomend 98 Ron fuel for the 172/182.... now usually I fill mine with Super Plus from Sainsburys (97 Ron btw) and get damn good fuel economy. Last week however I had reason to fill up at a Tesco with there Super Plus (99 Ron). In the last week since filling up at Tesco my fuel economy and the general feel of the car has been AWFUL, drinking fuel like an alcoholic and feeling very listless.
Heres the weird bit..... filled her up from nearly empty today with teh Sainsburys fuel, and suddenly she is running at 38mpg again! (So far anyway!!!) Can a difference in fuel REALLY make such a difference?? I know putting crap normal fuel in makes them rather listless, but I am wondering whether the Tesco one was TOO rich being 99 Ron? Either way I will only use the Sainsbury fuel (which is 2p cheaper a litre too) but was really just wondering what fuel anyone else uses or if anyone has had a similar experience?