- Joined
- May 24, 2023
- Messages
- 16
Hello all, I drive a vehicle I could find very few UOA's for, so I decided to get myself one done. It is a 2006 Range Rover with a jaguar 4.4 v-8 with an oil capacity of 8 quarts. There are some posts for the newer 5.0 V-8, but that's a newer direct injection variant. I used an OEM Mann 713/29 oil filter, which is a synthetic blend filter media. This oil saw temperatures of 80 degrees to 0 degrees F, and there was some towing up to 5,500 pounds as well. The oil was quaker state ultimate durability 5w-30. No oil was added during this interval. I see that my chromium level is above average. It may be piston rings, but I feel as though it could be piston rings and cylinder liners together. The liners are cast in cast iron, and maybe it is cast iron with some chromium for wear resistance? With a shim buck OHC valvetrain, I wonder if there is any chromium up top as well?
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