Bob the oil guy website guidlines

[madmaxx]

I have read BTOG website and if correct he recommends the following for oil viscosity.

1) 10 psig per 1000 rpm at operating temp. Oil which generates pressure any higher is detrimental.
2) No oil on the market regardless of weight is thin enough for cold start-up. Everyone should be using 0W-??? The caveat is it must be synthetic.
3) Dino oil starts off as the low number in the oil designation. For example 10W30, 10W40 all start as 10W and polymers are added.
4) All synthetic oil starts off as the higher number. For example 0-30, 5w30, 10w30 are all 30wt oil. Synthetic does not need viscosity improvers like dino oil.
5) 99% of the population should be using 0w20, and the other 0W30. He recommends no 20W50 etc. He said in an older engine you might want to use Mobil 1 0W40 to compensate for wear and it has higher phosphorous and zinc level than other oils. 1,000 and 1100 respectively.
6) You need the extra zinc/phosphorous in high hp applications regardless of roller cam or not. Examples of worn connection rod bearings were found, especially the top half.

Just thought I would share. Working a turnaround and 14 hrs days get boring but the $$$$$$ is good