Mixing Aeroshell 100 with 100 Plus?

[Pat Hatch]

I've searched high and low for an answer to this question but have not found anything in writing yet. I'm pretty sure it's OK to do, but does anyone know for sure or have a reference from Lycoming or Shell?

Somehow I ended up with a half case of each and would like to use it all up.

[Mel]

All approved oils can be safely mixed! weights, brands, etc.

That's part of the specification requirements.

[Low Pass]

And mixing these two particular grades is an economical way to get the benefits of the 100+ additives, without spending the $$ for all 100+ oil. Done it for many, many years.

[Pat Hatch]

Thanks for the responses, guys.

[turbo]

i wont say what i have mixed in my oil but I'm sure you are good to go.