Switchin oils for winter...should I?

355ci forged lt1 with a p1sc(self contained) blower. melling stock volume blueprinted pump with the white spring(i think white, the gm high pressure one)


Right now i run 7qts of mobile 1 15w50 full synthetic and a mobile 1 filter.

During normal operations, its pegged reguardless of RPM at about 75psi for about 15-30 minutes until the oil temp warms up then it acts normal. 30psi at idle and progressively up to about 75 again @ about 5500 with RPM.

I have been thinking maybe the 15w50 is to thick; taking to long to warm up. I never go over maybe 3k RPM or 25% throttle until the oil is warmed up, so alot of the time it never warms up before i get where im going lol. Never get to go fast.

So now that its cold, im debating whether or not to switch to a 10w30 mobil 1

What do you guys think? with it give me enough pressure when hot? will it provide enough protection at high boost and HP levels?



I used to think high pressure was a must with high power, high boost, but i recentally discovered the chevy duramax's normally run at about 15psi idle and 40-60 psi WOT with 550ft/tq and 30psi! so i guess thats enough.



thanks guys, sorry about the grammatical and spelling errorss

Are your still running the stock oil pan...7 quarts of oil is about 2 quarts too many if you're running the stock pan.

Are your still running the stock oil pan...7 quarts of oil is about 2 quarts too many if you're running the stock pan.



Canton with a huge filter

No one at all?
oh well

I'd switch to the 10w30 Mobil and stay there. I've always run that from right after break in when my camaro was new, winter or summer and never had any issues. I had an oil pump failure in my ride and when i pulled the engine apart, it looked almost brand new with 90k on it. I was impressed. I caught the failure pretty quick, but not quick enough before the cam lobes started giving up. My new setup is nice and broke in now so will be switching back to the mobil syn 10w30 again on the next oil change.

Ken R.

I'd switch to the 10w30 Mobil and stay there. I've always run that from right after break in when my camaro was new, winter or summer and never had any issues. I had an oil pump failure in my ride and when i pulled the engine apart, it looked almost brand new with 90k on it. I was impressed. I caught the failure pretty quick, but not quick enough before the cam lobes started giving up. My new setup is nice and broke in now so will be switching back to the mobil syn 10w30 again on the next oil change.

Ken R.

Thanks


Did you run that 11sec up here at altitude?

Yeah. Ran it up here, but the track has been so bad lately. It would just blow through 1st gear quick even with ET Streets. If you don't run out there during an event, you'll have a hard time cause there tight with the VHT and hooking up becomes a problem. I was out there on a non-event weekend friday night during the summer. Think it had 10.80's in it if I could have put the 60ft time down. Now have a T-trim on there thats making a few more pounds of boost and seems to be a better fit for my setup.

Ken R.