A strange on going issue. I have a 292 that I rebuilt several years ago. It runs great, but every year when the temperature drops, my oil pressure goes nuts. When cold ,when fired up, a steady 50lbs. As it starts to warm and I start to drive, the mechanical guage ( 4th one) will start to slam up to 80-100 psi. When it gets up to temp, it settles down to a steady 40-55 lbs. I run 10-30 oil, and have checked the relief valve in the gear type pump. This has gone on for years and have never blown out a filter or anything, but it does have me scratching my head at this time of year.( temp in the 40s). Hmmm

ARE you in a cold climate? Im with Ted so long as it comes down as the oil gets hot I think your fine.. I wish mine was that good, both my Y block and Flathead lose oil pressure as the oil gets hot and at idle I barely have any !



"Came too close to dying to stop living now!"

Do not use a lower weight oil. Stick with 5w40 or 10w40. using ?w20 your asking for cam failure and I would not be using 30w either unless it has enough zinc to stop cam and lifter wear.

-Gary Burnette-

After hearing from you all,I feel that I can live with the situation. My real concern is the hammering up and down that it does for a short time. The only casualties are 3 cheap gauges .They will only put up with it for so long. Got a good SW in now. Thanks again.

Ceck this sight Speed talk. diesel lube oil wear test results.this test includes gas engine oils.some quotes 5-20castrol gtx conventional
95543psi thresh hold
castrol edge titaniam 95717 5W30
818 ppmzink
phos 883ppm
moley 90ppm
titanium44ppm
thay also saymodern low zink oilsCAN BE USED SAFELY WITHFLAT TAPPETCAMS,EVEN WITH ENGINES WITH RADICAL CAMS AND SPRING PRESSURE. THER IS SOME 30 PAGES OF TESTS OF ALL OILS AVAIL IN THE US. THOSE WITH HIGH OILPRESURE,100PSI WOULD BE WISE TO CONSIDER5W30. IN TODAYS OILS THER IS NO NEED FOR HIGH OIL PRESSURE.1 COLD MORNIG YOU WILLBLOW THE SEAL ON MOST SPINONS,AS WELL AS THE GASKET ON THE ADAPTOR FOR THE SPIN ON