- Local time
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- Joined
- Apr 13, 2012
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- 41,078
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- Location
- Granite Bay CA
My last cam failure was after a trip to Southern CA and back, a 950 mile run in 4 days. The freeway driving was the majority of it at engine speeds around 2000 rpms. Unfortunately, several months before the trip I switched from Valvoline VR 1 to this....
I was told after the failure that this oil was likely the cause. Synthetic emissions friendly oil with HIGH detergent. I saw the "Extra ZDDP" and thought it would be great. The detergent surely prevented the ZDDP from sticking anywhere, leaving the cam and lifters with no additional protection at all.
I was told after the failure that this oil was likely the cause. Synthetic emissions friendly oil with HIGH detergent. I saw the "Extra ZDDP" and thought it would be great. The detergent surely prevented the ZDDP from sticking anywhere, leaving the cam and lifters with no additional protection at all.














