It would be hard to verify any of the cleaning and wear protection if they have the same rating. That being said I would pick the oil with the highest add package, probably the base oil are the same
I searched through the uoa`s today and Synpower and Durablend have the lowest wear metals. Looks like I`ll be getting one of those next oci,probably Durablend.
Originally Posted By: electrolover
valvoline 5w30 conv vs pennzoil conv 5w30 for cleaning and wear protection.
any educated opinions??
I would have gone to the search section b 4 I ask that, it borders on the old statement " My car likes it". if u know what I mean,,,
valvoline imo...it just seems to produce the BEST overall wear numbers out of any oil out there. Granted, it doesnt have the best TBN but TBN doesnt mean much. I run synpower in my father sienna for 1 year OC that sees 20 city miles a day. Its been a year and the oil is still fluid and dark amber. I've been using it before i came to this forum and seeing the UOA just makes feel so much more confident in using it.
Quote:
Extensive engine inspections at EOT indicate both types of ZDP
technologies provide excellent oxidation control, wear protection and
sludge/varnish cleanliness.
• Used oil analysis of wear metals and oil condition indicated
equivalent performance of the two test oils.
This is old news and who knows if others are using this.
Quote:
The low volativity phosphorous in this ZDDP ester reduces the amount of phos that would get into the exhaust stream which is good for CATS. As I mentioned in another post, I think Lubrizol saw a decling market share in the older ZDDP (which BTW, they invented) and developed this ZDDP to try and recapture it as well.
Valvoline all the way. Been using it for years and it maintains an extremely clean and well lubricated engine. All flavors are excellent. Conv, Durablend, Synthetic, Maxlife, etc... Outstanding products.
you cannot go bad with either product. PYB is known to have a better base stock as it is a group II+ vs group II for valvoline , however in a real world comparison with regular oci's that means very little. Both will clean very well although PYB is packed with detergents,although Valvoline is no slouch either.In terms of wear protection they are very comparable and both will get the job done.