Join Date: Mar 2006
Location: Mississippi Gulf Coast
Thicker not thinner
Since I completed my build last year, I've noticed during the "jungle hot" summers of South Mississippi that when the motor is warm and I shut it down, say while I'm filling up with gas, that when I start it up again, my pressure takes about 3-5 seconds to return. A perfect example of my delimma is when you change the oil and you start it the first time, it takes a few seconds to get pressure. Anyway, I asked my machinist his take and he told me to either run Valvoline VR1 (SAE 60) or add some really thick stuff from Comp Cams. Somehow, 45 mins later when I left his shop, I didn't have the goo. Since I had already bought some Castrol GTX 10W-40, I decided to add some Lucas oil treatment.
Results: not completely known since I just changed the oil tonight and have not yet experienced the heat of the day with a hot motor. I can tell you that the pressure is higher than it normally is so thicker must be better.
So, add a quart of some good thick stuff like the Lucas and see if that makes a difference. It can't hurt it.
'98 Wrangler Sport, 4.6L Stroker
12 Counterweight 258 Crank (cut snout-casting #3214723), Sealed Power +.030 Hypereutectic Pistons, 5.875" Connecting Rods, CompCams 68-231-4, Ported/Polished Head, Edelbrock Header, 24# Ford Blue-top Injectors, 63mm bored OEM Throttle Body, Port matched Intake, Autolite Platinum plugs, Accel Coil, LiveWires Distributor & Wires, Centerforce Clutch, Hurst Shifter, modified Mustang GT Air Cannister - CAI, 18" Magnaflow and 2 1/2" exhaust, Balanced Rotating Assembly, Custom PCM tune.
Yeah, I built it!
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
'04 Mustang GT, 4.6L
Read more, Post less, Search often