Oil type and weight?

[Firecloud]

Hi guys, I'm a new guy to this forum. Just purchased a 1984 M1009 6.2L Blazer with 66k miles. I'm sure that this question has been asked and answered and I did search, but couldn't find the answer to my question.

1. What's the correct viscosities for the 6.2L n/a diesel engine? I'm looking for manufacturers recommendation. I don't have any experience with this engine and no manuals. I live in the mountains of Colorado, and the truck will be used as a plow. Sounds like other diesels that I've owned in that 15w40 is recommended from owners.

Thank you! I look forward to contributing to this forum in the future.

Andy

 

[mike634]

15W40 in the 6.2 also

 

[Bigbondo007]

I love this stuff, and a wix filter

Sent from my SM-N950U using Tapatalk

 

[german m1008]

TM's for the CUCV

Listed below are a number of the TM's for the CUCV trucks. To save them to your computer, right click, select "save as". LO9-2320-289-12.pdf LO9-2320-289-12 Lubrication order for all variants of the CUCV. TM9-2320-289-10.pdf TM9-2320-289-10 Operators manual for all variants of the CUCV...

www.steelsoldiers.com

 

[cucvmule]

I have been using Shell Rotella for 15 years and Texaco before that. Recently I started using Lucas also with a Wix filter.

 

[cucvrus]

15W40 Rotella T will do it every time. I have only ever used 1 type of oil other than the Rotella. I bought a 55 gallon drum of Mystic 15 W50 super heavy duty oil and it was sealed and dirt cheap because the drum was dented severely. Don't remember the exact cost but it was less than $1. per qt. Good Day at the sale. Bought ATF in 55 gallon drums because of dents and minor leaks. Stick with the 15W 40 and all is well. Take Care Good Luck.