Toyota and Motor Oil GradesPosted By Rod Kaufman |
I took my wife's '09 Toyota Matrix into a dealership for an oil, filter and tire rotation along with the fix for the acceleration issue. Up till this point, the dealership had been filling the crankcase with 5-20 motor oil, as specified in the owner's manual. Now, I've found they changed the grade to 5-30 so I called the service adviser and he tells me Toyota changed the oil-grade requirement six months ago from 5-20 to 5-30 and apologized for "misinformation" being disseminated by Toyota regarding the oil requirements of their '09 models. I'm going to call the Toyota 800 number next week and ask for an explanation because this seems unusual to say the least.
My owner's manual calls for either a 0-20 or 5-20 grade and notes maximum fuel economy occurs with the 0-20 variety and states nothing about the 5-30 grade. Can using a 5-30 grade hurt my engine? Can using a 5-20 grade in an engine that requires 5-30 hurt the engine? I note many newer vehicles are designed to use 5-20 grades so I didn't think it was too unusual that my owner's manual specified it. I live in California and the climate is generally mild so I doubt whether the difference between the 5-20 and the 5-30 is critical but I don't really know.
Any thoughts about it?...
My owner's manual calls for either a 0-20 or 5-20 grade and notes maximum fuel economy occurs with the 0-20 variety and states nothing about the 5-30 grade. Can using a 5-30 grade hurt my engine? Can using a 5-20 grade in an engine that requires 5-30 hurt the engine? I note many newer vehicles are designed to use 5-20 grades so I didn't think it was too unusual that my owner's manual specified it. I live in California and the climate is generally mild so I doubt whether the difference between the 5-20 and the 5-30 is critical but I don't really know.
Any thoughts about it?...