Speaking of weird oils, my Corolla hatchback takes 0W-16 oil. I haven't even seen that in stores anywhere!
-Karl B. Relevant vehicle for here is a 2019 Mirage ES 5 speed hatchback. Lots of Toyotas and old Chryslers also.
A town nearby has 5 quart jugs of Mobll 1 0w-16 Advanced fuel economy for Honda & Toyota engines. It has 2 jugs in stock for $25.47. If one Walmart has it, more Walmart stores will have it in the future, too.
Amazon sells Toyota Genuine SAE 0W-16 Synthetic Motor Oil Pack of 6 quarts for $49.30 ($8.22/quart). One consumer review states it's cheaper at the Toyota dealership.
Holy crap. Pretty soon, we're just going to be putting distilled water in our engines.
One of our highest mileage (240,000+ miles) forum members has received 48 free oil changes for his Mirage, and the dealership is using 5W-30 conventional oil every 5,000 miles. He's not experiencing any issues (leaking or burning oil).
If using a different weight oil would create major problems, the 2019 Toyota Corolla hatchback owner's manual would not make the following statement (copied & pasted below)-
"The 16 in 0W-16 indicates the
viscosity characteristic of the
oil when the oil is at high temperature.
An oil with a higher
viscosity (one with a higher
value) may be better suited if
the vehicle is operated at high
speeds, or under extreme
The owner's manual is not saying the use of something other than 0W-16 will destroy your engine. If anything, it's somewhat hinting otherwise in my opinion. If I owned a car that used 0W-16, I know what I would buy and use.
When 5W30 first became widely used, many user manuals only recommended it for winter, with 10W30 recommended for summer.
View my fuel log 2015 Mirage DE 1.2 automatic: 43.0 mpg (US) ... 18.3 km/L ... 5.5 L/100 km ... 51.7 mpg (Imp)