05 Chevy Express 42k 6.0L
Out: PP 5w30
In: PU 5w30
PF61 filter on both. Only went 5.4k this time. Went too long the first time at 9k miles, too long of a first oci with PP or PU.
Out: PP 5w30
In: PU 5w30
PF61 filter on both. Only went 5.4k this time. Went too long the first time at 9k miles, too long of a first oci with PP or PU.