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Class_A_DP_1's avatar
Class_A_DP_1
Explorer
Jul 31, 2016

2004 Workhorse P32 Vortec 7.4 (454) OIL RECOMMENDATIONS

I've searched the site using search function and cant believe this hasn't been discussed to the hills here. I must not be finding it. My R-Vision has the Workhorse P32 with GM Vortec 7.4L 454ci - ...
Class A
rgatijnet1's avatar
rgatijnet1
Explorer III
Jul 31, 2016
Are you positive about that engine? I thought that in 2004 all of the P32's had the 8.1L 496 engine.
I would use the 2 quart oil filter instead of the standard 1/2 quart oil filter. Besides the extra oil capacity which aids in cooling, it gives you four times the filter capacity. Any good 5W-30 oil will work altho some think the synthetic oil will extend the engine life.

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