Danimal1q2w3
Thread starter
This is 99% highway. But I hear what you’re sayingDoes your friend want to save money or time? Might as well abuse the engine with a cheaper good (Extended) oil. Usually people who use fancier oils are even more meticulous! Time to lecture your friend.
The engine will be happier with a much cheaper oil and a much shorter OCI.
My Tacoma iirc says use engine oil and it's not picky.
btw, even Amsoil page says:
Severe condition:
which I'm sure most cars fall under: 700 hrs, 1 yr, 15K miles. Whichever comes first.
I would pay attention to 700 hrs.
Normal condition:
700 hrs, 1 yr, 25K miles. Whichever comes first.
I would pay attention to 700 hrs.
Oil Filter:
I don't trust any over 12K mikes.
Oil:
I can't sleep if over 8000 miles even with "Extended" oil.