Quote:
Originally Posted by PoPo8
Hello
I am currently running 15w40 Delo oil in my 2001 F350, here is Texas. I will be going hunting up north next month and expect singles and low teen temps.
My truck is up for an oil change, would it be wise to switch to 10w30, stay the same, or use another weight?
Thanks
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You could always go with a great winter weight like straight 30. I wouldn't recommend using 10w-30. It's not engineered for diesels.