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Author Topic: oil weight recommendation  (Read 4562 times)

Offline levisjohnson

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oil weight recommendation
« on: December 30, 2009, 05:45:25 am »
I have looked on the site and searched the internet and can not find what I am looking for.

I would like to know what weight engine oil you would run.
-88 6.2L Diesel 3+3 3/4 ton TH400 all stock

Driving conditions:
-will be daily driver
-drive an hour each way to work on Interstate
-warm humid Florida

I was thinking 10W-40?

Thanks for you help everyone.
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Levis

88 6.2L Diesel 3+3 3/4 ton

Offline VileZambonie

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Re: oil weight recommendation
« Reply #1 on: December 30, 2009, 08:05:08 am »
GM recommends 15w40
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Offline levisjohnson

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Re: oil weight recommendation
« Reply #2 on: December 30, 2009, 08:21:01 am »
I knew a minimum of 10 but I was not sure.  Thanks Vile!
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Levis

88 6.2L Diesel 3+3 3/4 ton

Offline malibu795

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Re: oil weight recommendation
« Reply #3 on: January 01, 2010, 03:06:55 pm »
15w40 is norm for diesel applications
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79 malibu 454/T56 305rwhp/432rwtq 15.6@92.8mph
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Offline frito-bandito

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Re: oil weight recommendation
« Reply #4 on: February 04, 2010, 07:54:02 am »
If your in a bind, 10w40 will work, but its way better to pay the extra $$ and get 15w40
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Offline levisjohnson

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Re: oil weight recommendation
« Reply #5 on: February 04, 2010, 06:21:29 pm »
I really don't know why I asked.  I grew up on af arm and we had several diesel farm trucks.  I guess it just slipped my mind.
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Levis

88 6.2L Diesel 3+3 3/4 ton
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