Quote:
Originally Posted by Frederick
I changed my oil today to Mobil 1 10-40. Engine sounds sweet and I think the low rev whistling is gone. Took it for a long test drive  |
Just an update.
Changed oil to Castrol Syntec 10-40 and the whistle noise has re-appeared.
So, Mobil 1 10-40 is the one to use that eliminates the whistle .
