Hi guys
My dads 33 Gtr has been sitting around for 12 months or more as he has been overseas, the engine is now smoking mainly on deceleration. The car doesn't really smoke when crusing, we think that the oil rings may be stuck in the piston, does this sound right? or could it be something else such as valve guide seals or the wrong oil. If it is the oil seals that are stuck is there an addative that can be used to release them?
Any ideas on what could be wrong would be much appreciated.