Originally Posted by partyman66

You should switch over to German Castrol 0W30..... see how your car does with that oil. That's all I run in my G after doing some research years ago over on the BITOG forums (Bob Is The Oil Guy) and people had good results with that oil on our motors based on a plethora of used oil analysis reports. Many people were reporting less than desirable results using the modern Mobil-1 formulation of synthetic oil on VQ engines.... excessive valve-train wear, if I remember correctly was the common culprit on more than a fair share of VQ engines that ran that oil consistently.

German Castrol, although rated as a 0W30 oil, is not a super-thin oil... it just flows well at low temperatures. You can only buy it at Auto-Zone and you have to look on the back label specifically for the little insignia that says "Made in Germany".... which is different than the "European Formula" Castrol Syntec that says "Made in the USA".

Originally Posted by partyman66

You should switch over to German Castrol 0W30..... see how your car does with that oil. That's all I run in my G after doing some research years ago over on the BITOG forums (Bob Is The Oil Guy) and people had good results with that oil on our motors based on a plethora of used oil analysis reports. Many people were reporting less than desirable results using the modern Mobil-1 formulation of synthetic oil on VQ engines.... excessive valve-train wear, if I remember correctly was the common culprit on more than a fair share of VQ engines that ran that oil consistently.

German Castrol, although rated as a 0W30 oil, is not a super-thin oil... it just flows well at low temperatures. You can only buy it at Auto-Zone and you have to look on the back label specifically for the little insignia that says "Made in Germany".... which is different than the "European Formula" Castrol Syntec that says "Made in the USA".