B
B
Guest
after 60 any ideas? 70 plus which dropped to 55 - 60 after the service. Cam belt was changed, but I'm told valve timming ok and I was told originally that an ECU upgrade had been carried out, then I was told it had not, as it did not affect my model. I have used injection cleaner and the car has now completed 95k trouble free miles and has a fully Toyota service history, any ideas ? The only other factor was a change of Michelin tyre from E3A to Primacy, but as an ex Mich. Technician, I have checked the rolling resistance etc. and there's very little difference, so no joy there. Although I would never have believed a standard road tyre construction or tread pattern, could have made such a diffence anyway. So it's over to you guys ???????