11-08-2024, 02:18 PM

Schurkey

Ultimate Warrior

Join Date: Aug 2002

Location: The Seasonally Frozen Wastelands

Posts: 6,346

Quote:

Originally Posted by Verdoro 68

Yes, 15-50. I ran it because that's what Butler recommended. I have a Butler 60 lb pump with a shim and I was seeing the gauge pegged to 80 while cold and while driving.

For reasons of their own, Butler wants molasses in the oil pan. I think they're nuts.

Quote:

Originally Posted by Verdoro 68

The 15-40 I put in knocks the pressure down to 75-ish while driving and a little under 40 at idle when hot.

Next time, try 5W-30. MAYBE 10W-30.

Reply With Quote

The Following User Says Thank You to Schurkey For This Useful Post:
78w72

« Previous Thread | Next Thread »

Thread Tools
Show Printable Version Email this Page
Display Modes
Switch to Linear Mode Hybrid Mode Switch to Threaded Mode

Posting Rules
You may not post new threads You may not post replies You may not post attachments You may not edit your posts BB code is On Smilies are On [IMG] code is On HTML code is Off Forum Rules

Forum Jump

All times are GMT -4. The time now is 11:09 PM.

About Us

The PY Online Forums is the largest online gathering of Pontiac enthusiasts anywhere in the world. Founded in 1991, it was also the first online forum for people to gather and talk about their Pontiacs. Since then, it has become the mecca of Pontiac technical data and knowledge that no other place can surpass.

Menu

About Us