Thread: 1962 305d model 3000 What Oil Too Use
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Old April 28th, 2014, 07:45 AM
66birdman 66birdman is offline
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Default Re: 1962 305d model 3000 What Oil Too Use
The oil thing is all about personal preference to an extent. The owners manual called for no heavier than 20 weight back in the day but that was before multiple weight oils came along. I normally use 10w30 in both my Tbird and my GMC just to make it easier to buy in bulk. If you are going to be driving it in any kind of extreme cold I would go with a little lighter oil than 10w40 for the colder months. My old PowerStroke called for 15w40 but during the NoDak winters I had to switch to 5w20 to get it to start in the morning even when it was plugged in.
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