I ran my 80 TDi (1Z engine code) for 100k miles using only Synta Gold engine oil and at 213k miles it still runs as-new.
Is it OK to use the same oil in the AFN code engine?
The container mentions only petrol engines but it does meet VW 505.00 standard, which is what the filler cap demands.
I've done an oil and filter change on the A4 using Synta Gold now and just want to make sure I've done the right thing....