Im running a 1986 5.0 HO block with a mild flat tappet street cam... Its a fresh rebuild that I got last year ( it came with 5 qts rotella 15 40 for break in) said to use it for 500 miles then swap to whatever. Well finally got the motor in and 500 miles on it... needed to put some oil in it. So did my research seemed like VR1 20w 50 oil was the stuff of choice for guys running the flat tappet cams...
Put in 4.5 qts in and ran it around to get it up to temp to see how it did... what I noticed was the oil pressure was nearly identical to the rotella oil... however the engine ran hot. with the rotella oil 190 or so was normal operating temp... with this stuff I pull in from the drive and im at 200 and rising steady. First thought was my electric fan didnt come on at 185 like normal... but on inspection it was blowing strong. I killed it and pushed it into the garage..
My question is would the change in oil being heavier not allow for proper oiling of the engine. I have read that people are using this oil in racing machines and new motors with equally tight clearances... should I invest in 10 30 vr1 ?
of course I tossed around the options of moil 1 15w 50 ... and royal purple, brad penn, so on and so forth... but this vr1 is readily available at all stores with appealed to me.
by the way this engine is in a 65 ford f100 that is being restored.
any info would be greatly appreciated.
Thanks,
josh
Put in 4.5 qts in and ran it around to get it up to temp to see how it did... what I noticed was the oil pressure was nearly identical to the rotella oil... however the engine ran hot. with the rotella oil 190 or so was normal operating temp... with this stuff I pull in from the drive and im at 200 and rising steady. First thought was my electric fan didnt come on at 185 like normal... but on inspection it was blowing strong. I killed it and pushed it into the garage..
My question is would the change in oil being heavier not allow for proper oiling of the engine. I have read that people are using this oil in racing machines and new motors with equally tight clearances... should I invest in 10 30 vr1 ?
of course I tossed around the options of moil 1 15w 50 ... and royal purple, brad penn, so on and so forth... but this vr1 is readily available at all stores with appealed to me.
by the way this engine is in a 65 ford f100 that is being restored.
any info would be greatly appreciated.
Thanks,
josh