|
Esso i think is pretty terrible gas. At least go 91 Shell, and 94 petro-canada.
Not sure on additives, never really fiddled with them.
DME coding is registering the individual injector tolerance level into the ECU, each injector has a slightly different tolerance, no two are perfectly identical. So during testing the injectors BMW writes down the numbers on the side of the injectors, and later codes them into the ECU.
If you don't code DME, I'm not sure what would happen. no idea at all.
|