Is anyone running 50 wt, or is 20-50 cool enough?

 

Without digging into the specific spec sheets for the oils in question, they're effectively the same at operating temp. The multi-vis is just easier to pump when cold.

 

This is what I thought it was. The first number is the cold weight and the second number is the heated up weight. With that said, 20w-50 is perfect for all climates, especially yours where it doesn't get that cold.

 

Thx, of course the manual states straight 50 for hotter climates

 

I live in one of the hottest climates and have never used any oil other than 20/50.

 

I lived in Phoenix for 42 years and from April to Oct I used to run straight 50w conventional (VR1).
Been runnin 20w50 conventional here in Colorado regardless of temps. Once it gets warmed up it runs nice and quiet.

 

Same here.

 

Is this an oil thread? HA.. 20W-50 is 50 viscosity oil. The 20W is what the engineers have built into the oil to flow in the winter (W). The 50 is represented of the straight viscosity 50.

Modern oils do their thing. Heavy viscosity do not lubricate any better. In fact, they drag down and eat up power. They also in some case can cause small needle bearings to not be washed over and chips will hang and cause them to not turn

Just my opinion. Run high detergent 20W-50 Synthetic in the engine. The detergent keeps crud mixed in oil so filter catches it. Run straight weight 50 gear oil in transmission and primary since they do not have filters and you want crud to settle and stay on bottom. As best I can tell, no one has something 50 viscosity straight weight non detergent gear oil except Harley. Of course, I just made this an oil thread for sure. But nothing the mother ships' engineers have proven. They were saying 20W-50 Sinthetic in all three holes but they now say after finding out the hard way that that is not best. OK but not best.

 

Have any of you actually have read the owner's manual? I'd doubt it by some of the responses.

It quite clearly calls for straight weigh oils in hotter climates; and RIPSAW as is the usual, full of **** once again.

Read the stupid manual; I run nothing but straight weight oil, specifically Valvoline VR1 in hot climates.

Oh look, it's from the manual...

 

Yes I have read the owners manual and still have never run just a straight weight oil or found it necessary.