Fresh 5.3 oil pussure
#1
Fresh 5.3 oil pussure
I have a rebuilt 5.3 with cam and 243 heads the oil pressure gauge will be 40 on start up but when come to a stop it'll drop to 20 hit the throttle it will go up... the first day truck was running never went under 40 is it broke in or should I change oil has new oil pump
Last edited by Oldgtonick; 04-25-2017 at 08:56 PM.
#2
TECH Senior Member
You mean PRESSURE, right?
#6
TECH Senior Member
5w 20 is thinner than 10w 30. You want thinner oil? It will show lower pressure.
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#8
TECH Senior Member
What don't you like about 10w 30? Do you want more oil pressure or less?