mono grade x multi grade oil

now i have 60W monograde oil, with proper clearances and proper warming its makes the engine survive...

so, someone could share about use of multi-grade on big hemis? or the monograde is the way to go?

 

I ran low 7 sec 2700 lbs top sportman body car , 509 blown BBC for years with 10w30 full syntec oil without any brgs problem . Just my experience
Claude

 

again

now i only have 60W monograde oil....

if someone else uses this kind of oil let me know....

on kb hemis 470-500cid psi blower and so on....

i have only 60W or 50W monograde....no other options.....

 

I run either 50w or 70w lucas oil depending on how hot it is. I am not an engineer but a 20w-50 is half 20w I believe and I would be scared to death to run 20w oil. And I run a NHRA legal TAFC with a PSI blower. Dave Germain

 

the W stands for winter. unless you race in sub freezing conditions, you are using 50 wt oil (if you have a 20w-50 oil) use straight weight oil.

 

Other Oils

Does anyone make a high weight full synthetic oil.

The cost would be a lot more, but it is only about 25% as flammable.

 

The "W" stands for weight. In other words 20W-50 is really a 20wt oil that has the same viscosity breakdown point of 50 wt monograde. Run at least a 50 wt monograde but we are like most others and run either Kendall Nitro 70 or Castrol 70 wt 4 cycle motorcycle oil.

 

amsoil makes a 60W made for supercharged motors
I never have used it
i don't know any more than that
i do use their 0W-30 in the lenco thou

 

The problem with a synthetic oil is the deterioration of the tracks sticky surface after an oil down. The chemicals in the oil break up the petroleum based surface over time.