Firm Rampant Member
Which is why all car leasing Co's insist that super narket ( yep) fuel is never used with their vehicles.It only triggers debate amongst people who will NOT listen to mechanics who open EGRs and engines regularly that run on crap fuel. Doing a high mileage at motorway speeds in a Euro 5 car…? You should be ok. Running a Euro 6 oil diluter…? Use supermarket pish at your peril, regardless of high motorway miles.