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#1 |
Young One
Join Date: Oct 2003
Location: La Porte Indiana
Posts: 138
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Quick Question - What oil weight stock 1981 454
Bought a bone stock 81 gmc with a 454 a month ago and I'm not sure what weight oil i should put in it.
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69 R/S Camaro 79 K5 86 M1008 11 P71 Vic 12 Ram 3500 18 Ram 2500 |
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#2 |
Registered User
Join Date: Oct 2009
Location: Buhl, Idaho
Posts: 1,438
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Re: Quick Question - What oil weight stock 1981 454
mine says 10-30 but mine is a replacement motor from ac delco i would imagine that is it the same.
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86 c30 crew cab dually 454/400 4/6 drop SOLD 1-8-11 1981 chevy K10 short Bed Scottsdale SOLD 10-26-2020 67 GMC Stepside Straight six/3 on the tree "The Peach" 2020 Silverado Double Cab LT Z71 5.3 8 speed Daily Driver K10 build http://67-72chevytrucks.com/vboard/s...d.php?t=671934 The Peach build http://67-72chevytrucks.com/vboard/s...d.php?t=733903 ![]() |
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#3 |
Young One
Join Date: Oct 2003
Location: La Porte Indiana
Posts: 138
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Re: Quick Question - What oil weight stock 1981 454
K thanks.. I used wiki and it was saying 15w40 and that seemed off.
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69 R/S Camaro 79 K5 86 M1008 11 P71 Vic 12 Ram 3500 18 Ram 2500 |
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#4 | |
Conversion Truck Addicted
Join Date: Sep 2009
Location: Denmark, Europe
Posts: 1,550
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Re: Quick Question - What oil weight stock 1981 454
all older cars and trucks i give them a good 10W-40 from Mobile or Valvoline
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#5 |
Account Suspended
Join Date: Dec 2007
Location: Unnapreciative, Trollville
Posts: 2,079
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Re: Quick Question - What oil weight stock 1981 454
i use 10w40. the reason some people say to use the 15w40 is its a diesel oil and it still has (or had) some of the additives gasoline engine oil is missing. (govt Removed what we need) I don't know if diesel oil still has the zddp or whatever in it still. it helps flat tappet camshafts not wear as much.
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#6 | |
Registered User
Join Date: Mar 2010
Location: earle, ar
Posts: 139
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Re: Quick Question - What oil weight stock 1981 454
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