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04-13-2012, 01:19 PM
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#1 |
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Registered User
 
Join Date: Mar 2010
Location: New mexico
Posts: 370
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1971 C20 longhorn 350 oil weight
Hi, quick question. I'm not at home where the truck info is, and i need to buy oil for the truck on the way home. What grade should I buy? Thank you in advance.
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04-13-2012, 02:51 PM
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#2 |
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Junior Member
Join Date: Dec 2006
Location: Southeast Missouri
Posts: 2,436
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Re: 1971 C20 longhorn 350 oil weight
It depends on the number of miles on the engine. I normally run 10-30 wt in my vehicles, but some people run heavier weights in high mileage trucks.
__________________
'67 Chevy C-20 short stepper - build complete, 454/SM-465. '75 C-30 Single Cab DRW-350 small block/NP-435. '77 GMC-6500 Dump Truck, 427 Tall Deck. '92 GMC K-3500 Duallie, 454/4L80E. |
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04-13-2012, 04:25 PM
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#3 |
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Registered User
Join Date: Feb 2012
Location: Mission Viejo, CA
Posts: 1,858
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Re: 1971 C20 longhorn 350 oil weight
i run 10-30 in my 350. I havent dealt with junkers since I was a kid but I think the heaviest we ever put in was 10-40 and that was if it was a smoking pig that leaked in the driveway. lol
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04-13-2012, 07:11 PM
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#4 | |
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Registered User
Join Date: Jan 2011
Location: Townsend MT
Posts: 1,725
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Re: 1971 C20 longhorn 350 oil weight
I happen to have a pen just like that. To bad I couldn't put my pen next to the dent.
__________________
1966 F250 4X4 416 1972 K20 350 4 OTF Quote:
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04-13-2012, 07:49 PM
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#5 | |
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Registered User
Join Date: Jan 2011
Location: Townsend MT
Posts: 1,725
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Re: 1971 C20 longhorn 350 oil weight
Whoops. I hate it when I post in the wrong thread.
__________________
1966 F250 4X4 416 1972 K20 350 4 OTF Quote:
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