Oil selection

[ninety15.0]

Hey guys i was just wondering what type and weight oil is best with a new motor. Im going to break it in with conventional 10w-40 castrol cause i can get cases for dirt cheap....but i think i wanna switch over to a blend, which brand and weight would you recommend. Street driven car with ocasional trips to the strip...thanks in advance. Oh yea....what tranny fuild works best also...thanks

 

[notchback]

full synthetic 15w-50 , not a blend

i like mobil 1 but royal purple,amsoil , are all good

 

[HISSIN50]

I would be running something thinner in a new mill, unless you specifically had it built loose.

Redline D4 works well in the T5, if desiring a synthetic.

Good luck.

 

[bluevenom867]

Broke the cam in with 30 wieght,then got the ring seat and broke in with 20W-50 conventinal.And now am currently running 15W-40 Royal Purple synthic.But I am think about going back to the 20W-50,as the oil pressure (I dont run an oil cooler),was stabile even if the car got up in the temps a little.Once warmed up,the 15W-40 syn. has bout 25-30psi,while the 20W-50 has about 30-40psi for idel and the 20W-50 stays right at about 60psi after 2000 or so rpm's.