AC Delco PF64R filter?
Racer
Joined: Aug 2004
Posts: 491
Likes: 121
From: Albany NY
Thank you for that info. Have you ever seen anything regarding the upf64r and 35psi? The only thing I have ever heard of was that rockauto had it listed as 35 many years ago and then removed the info. I guess I will use the pf64 until I can get more clarification, but the upf64r looks to be a much higher quality filter.
Race Director
Joined: Jan 2014
Posts: 10,709
Likes: 7,101
From: Fulshear, TX
UPF64R is a Chevy Volt plug-in hybrid oil filter... It is NOT an upgraded oil filter for the C8. It's designed for 2-year oil soaks, per the Chevy Volt maintenance schedule (I used to have one).
If you want a higher quality filter, look at the Fram Ultra Synthetic XG12060: 99% efficiency @ 20 micron etc. etc. (and what I personally run in my C7 & C8)
If you want a higher quality filter, look at the Fram Ultra Synthetic XG12060: 99% efficiency @ 20 micron etc. etc. (and what I personally run in my C7 & C8)
Race Director
Joined: Jan 2014
Posts: 10,709
Likes: 7,101
From: Fulshear, TX
Melting Slicks
Joined: Jun 2001
Posts: 2,264
Likes: 546
See this link, PF64 Only GM service bulletin on oil filters :17-NA-157
https://static.nhtsa.gov/odi/tsbs/20...42844-0001.pdf
https://static.nhtsa.gov/odi/tsbs/20...42844-0001.pdf
Race Director
Joined: Sep 2016
Posts: 13,180
Likes: 10,522
The potential problem with running a filter with too high a bypass pressure is this:
IF the filter element gets clogged, and the bypass fails to open, your engine is going to be stared for oil. That's, umm, not good for engine life.
The LT2 (and LT1, and maybe some prior engines) needs a lower bypass pressure because it has a two-stage oil pump. During normal us, it pumps oil at a lower pressure, and only provide higher pressure when the engine is operating in range that needs it (e.g., high rpm, high load). So in low pressure mode, the LT2 won't open the bypass. The Volt, for which that filter is designed, has a single stage pump that is always supplying higher pressure.
If you change your oil and filter as called for, it's unlikely to actually be an issue. But why take chances?
IF the filter element gets clogged, and the bypass fails to open, your engine is going to be stared for oil. That's, umm, not good for engine life.
The LT2 (and LT1, and maybe some prior engines) needs a lower bypass pressure because it has a two-stage oil pump. During normal us, it pumps oil at a lower pressure, and only provide higher pressure when the engine is operating in range that needs it (e.g., high rpm, high load). So in low pressure mode, the LT2 won't open the bypass. The Volt, for which that filter is designed, has a single stage pump that is always supplying higher pressure.
If you change your oil and filter as called for, it's unlikely to actually be an issue. But why take chances?
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Race Director
Joined: Sep 2016
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I'm not terribly worried. And if I'm using the factory recommended filter, GM can't blame me if something goes wrong.
