2020 duramax break in procedures - Chevy and GMC Duramax Diesel Forum
2020+ GM T1 Platform Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission, Etc.

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post #1 of 2 (permalink) Unread 12-29-2019, 08:21 AM Thread Starter
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Join Date: Aug 2015
Location: albuquerque, NM
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2020 duramax break in procedures

what are the proper break in procedures for these diesels..i did find some info in the owners manual but do not know if it is for gas or diesel...yes i read the diesel supplement and spent most of last night going over the owners manual. my guy from the dealership said just drive it normal. well i tow my 24 foot enclosed trailers every week hundreds of miles so want to make sure i bring it into the working world properly. i picked it up with 44 miles on it an now it has 181.
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2015 3500HD LT
2020 2500HD high country
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post #2 of 2 (permalink) Unread 12-29-2019, 08:58 AM
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Join Date: Oct 2008
Location: Aliso Viejo, Ca
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Drive it, like you stole it. These trucks need to work to break in properly. Do not baby it......
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