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0w-20 vs 0w30

25849 Views 70 Replies 23 Participants Last post by  ColoradoTJ
This is not a motor oil question or review, just an experience. I took my truck to the dealer last saturday for them to change my oil (first mistake). I bought 2 gallons of amsoil ss 0w-30, knowing our truck takes 7.9quarts. 1 gallon equals 4 quarts, so 8 quarts of oil and an amsoil filter. The dealer calls me back and states that I have the wrong kind of oil, the truck takes 0w-20. I tell them that I know, and that I want to use 0w-30 because I tow. The dealer then tells me that the 0w-30 may cause a check engine light!!! I told her she was full of it and go ahead and change it.
Two hours later, they call me back and the truck is ready, but it is a quart low on oil! I hit the roof! After much deliberation about their intelligence, I speak with the tech, and he claims that the amsoil fiter is larger than the toyota filter.? When I check the oil, of course it is not a quart low, just a hair below the full line.

Anyway, I wanted to let anyone know who is on the fence about using 0w-20 or 0w-30 There is no check engine light that warns you have the wrong oil, and that the truck is VASTLY quieter and smoother with 0-30. I never liked all the clank clank and diesel sounds my truck made with the 20 weight oil. It is like a whole different beast (ie, no clanking) now that I switched to 30 weight. I will never put that 20 in the truck again! I don't care what the book says about 20 weight, I want my truck to last, and 30 is the way to go for me!! No noticeable drop in MPG either.:machinegunner:
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so what would you use if you lived in northern NY it doesnt get to warm and its cold as hell in the winter 0w20 or 0w30?
would there be any problem running 20 in the summer and 30 in the winter because I tow a 2 place snowmobile trailer every weekend
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