Finally got a running 65 C10

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Ricko1966

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The Rotella T4, while it does have the higher zddp levels, also has more detergents in it that are meant for use in a diesel engine. Those detergents can actually increase wear in a flat tappet gas engine. This is something that I just recently learned.
Shell live documents 8/15/2023 shell says good for off road gas engines. They did change some of the ratings due to the high dzzp and catalytic converters,but IDK maybe something has changed in a year and a half.
 

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bucket

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Shell live documents 8/15/2023 shell says good for off road gas engines. They did change some of the ratings due to the high dzzp and catalytic converters,but IDK maybe something has changed in a year and a half.

I don't know. All I know is that a little while back, I watched a test video that Lake Speed Jr did, with lab test results afterwards. I'm only a graduate of youtube university, lol.
 

Ricko1966

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I don't know. All I know is that a little while back, I watched a test video that Lake Speed Jr did, with lab test results afterwards. I'm only a graduate of youtube university, lol.
IDK either, all any of us can do is research to the best of our ability and make our own decisions. Honestly I was trying to buy VR1 but the oil help line guy told me what he told me. He coukd have been laughing as he hung up the phone.
 

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