What instigated this thread is I am debating dumping the new 0W-16 out of my Toyota and replacing it with 0W-20. The 0W-16 is new. I took the car to the dealer - feel obligated as its still in warranty - and they changed the oil for free - work order and window sticker say 0w-16 which is what the manual calls for.
In reviewing the J300 specs, there is quite a bit of overlap in the spec, and HTHS isn't that far apart?
I also have no idea what they put in - likely the cheapest crap around. However in looking at the M1 Advanced Fuel Economy for the 16 vs 20 weight, there like 7.2 Vs 8.2 [email protected]
So do I dump it and put in 0w-20?
Side question, if I do - do I change the filter - its a new OEM filter - so I am thinking not on that part.
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