Mixing Amsoil 5w-50 with Amsoil 10w-40?

[DJSCIASCIA]

I have 4 qts of each. Is it ok to mix or should I just stick with one weight?

 

[fearthesnake]

Just my opinion I wouldn't. Not sure how if any that would impact lubricating tight spots or not. Doesn't the 50W stay on the Crank longer?

 

[railroad]

I would not have a problem doing it. Oils have to be compatible with other wts and brands, too much liability.
You are not putting something outside the safe usable range of wts.

 

[kcobra]

So are you trying to make a 7.5W-45? lol

 

[SDBs13GT500]

As an AMSOIL Dealer you can mix the oils. Keep in mind you are mixing a Signature Series oil (more robust additives package) and an XL oil. If you are going to do this run it no more than the XL oil recommendation, 10,000 miles or 6 months. My recommendation is order five more quarts of 5W-50 and use the 10W-40 for something else like your lawn mower.

 

[DJSCIASCIA]

As an AMSOIL Dealer you can mix the oils. Keep in mind you are mixing a Signature Series oil (more robust additives package) and an XL oil. If you are going to do this run it no more than the XL oil recommendation, 10,000 miles or 6 months. My recommendation is order five more quarts of 5W-50 and use the 10W-40 for something else like your lawn mower.

I only do about 3-4K miles tops a year. That's why I was curious. I have no other use for my 10-40 since 5-50 came out.

 

[biminiLX]

So are you trying to make a 7.5W-45? lol

Exactly
Mix it and enjoy, it's quality oil.
-J

 

[Black Thunder 715]

No big deal. I just mixed 4 qts of 10w30 amsoil ss and 4 qts of amsoil 0w40 ss in my Shelby. I've done stuff like this for yrs in other cars and nothing ever happens. They all have to be compatibles.