|
Scedule A on CRD'sis IRO 12,000 miles, Schedule B is high density city driving and 6,000 miles intervals. No difference in the oil quality a fully synth is used at all times. In a common rail High pressure Turbo diesel engine I'd personally never go a semi synth route.
Having seen the result of sludging in Saab engines using semi-synth, I just feel safer.
__________________
Derek McIlreavy
Never argue with an idiot, they drag you down to their level then beat you with experience 
2002 Saab 9-5 Aero
2008 Dodge Nitro SXT CRD Auto
|
