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#1
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what oil to use
what weight oil should I use in the 305E
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#2
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Re: what oil to use
IMG_20150531_0001.pdf Hope this atachment works. Bob
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#3
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Re: what oil to use
IMG_20150531_0002.pdf page 2
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#4
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Re: what oil to use
You will need to stand on you head to read the last attachment. Bob
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#5
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Re: what oil to use
Not to hog the thread, but good to know. I'm running 15-40 in mine as of now. I'm gonna run the Valveline racing 30 weight oil.
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"Excuse the rust I use my truck" 1964 GMC 1500 305E/sm420 4 barrel intake mod and dual exhaust. To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. 1964 Chevy C20 292/SM420 1966 Chevy C10 292 hotrod 6/TKO600 My youtube channel aka Military Chevy: To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. |
#6
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Re: what oil to use
30wt Shell Rotella works great.
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Clyde McKaba Abbeville,SC 1961 GMC Suburban 4WD 305 V6, 4spd 1966 GMC 3/4T P/U 351 V6, Turbo 400,Gear Vender OD 1969 GMC Suburban 1/2T |
#7
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Re: what oil to use
In the 15 years our forum has been around, what oil to use has been discussed several times. Everybody has an opinion. Ask 10 people what to use and you'll probably get 10 different answers. In my opinion, there is no "right" answer as long as you use a good brand name oil and change it and the filter often enough. These V6s are tough engines and will take a lot of abuse. When you take into consideration that modern oils, with their superior additive packages, are light-years better than the oils available in the 1960s, there is no reason to be afraid that you'll use the "wrong" oil nowadays.
My personal preference is Amsoil 10W40 because of the high zinc additive for flat tappet cams. See http://www.amsoil.com/shop/by-produc...?code=AMOQT-EA. I've been using it since the early 1970s.
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Ed Snyder Medford, Oregon 1962 1000 Pickup 401M & Muncie 318 with overdrive 1962 K1000 Suburban 401M & SM420 1967 CM1500 pickup 351E & NP435 |
#8
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Re: what oil to use
amsoil makes good products,I will be running amsoil racing 2 stroke oil in my arctic cat 600 triple two stroke sled.when I get it back together. Bob
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#9
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Re: what oil to use
Yes I would run a 30wt in the summer but a 10w30 would be fine all year.
But make sure you use a zinc additive if the oil your using does not have it in there. |
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