According to the manual, no. According to the products themselves? Yes. The manual tells you not to mix brands and to use a very specific type for aluminum engines and such but every label you read will say that it's engineered to be safe to mix and safe for aluminum engines and such. *shrug*
The manual also says to use 90W oil to lube the chain, but who does that?! The argument is always between wax-based vs. other purpose-made lubricants with no consideration for the manual's strange request.
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