Straight 40 to thick?
Well I was able to get oil filters for my 305 V6 for $2.88 a piece so I stocked up on some. I already changed the oil a few months ago, but will be changing again as my custom for older engines that have had old oil in them for years. I keep changing the oil frequently until it stays clean for longer than before. Anyhow...my question....winter is on its way...and I have a large stock of Straight 40 Napa oil. Is that gonna be a little thick? Seeing as how this is a fairly high mileage engine I thought it should be fine. Don't have an oil pressure gauge on this thing so I have No idea what I'm running at now. Seems to be fine with the 15w-40 I have in it...so I don't think the straight 40 would hurt anything.
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"Excuse the rust I use my truck"
1964 GMC 1500 305E/sm420 4 barrel intake mod and dual exhaust.
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1964 Chevy C20 292/SM420
1966 Chevy C10 292 hotrod 6/TKO600
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