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Technical Info

This category contains service options for obtaining information related to the GM 6.2 and 6.5 Diesel engines. Unique Diesel has over 20-years experience operating and servicing these engines and holds a lot of information about this platform in general. There are many resources on the internet that a potential customer should seek to learn about their engine beyond seeking out businesses advise.

The Diesel Page


This is the first technical resource available online that provided a community forum for other owners to discuss and troubleshoot and learn about the 6.2 and 6.5 Diesel engines. Today this website still holds the majority of the information about these engines from troubleshooting to performance. The website offers paid membership to read current and past articles as well as books available or purchase that contain past articles and literature found no where else. The forum is a community forum that allows you to search for past discussions that will likely answer your questions and make new inquires and allow the community to assist you.


The Truck Stop


This is a large and very active forum that caters to both the 6.2 and 6.5 engines as well as others. The forum is a community forum that allows you to search for past discussions that will likely answer your questions and make new inquires and allow the community to assist you.


Advice to avoid:

Avoid Facebook groups for help as these groups are plagued with amateurs offering feedback (purely opinion base) about postings verses advice, it's very rare to see a genuine poster with knowledgeable information.

Avoid DieselPlace.com as this forum's ownership (Vertical Scope) and moderation is very woke, the administration prides themselves on censorship in controlling what's discussed. Anyone that bucks this is simply banned and will be told they no longer have access due to a violation of community standards which are not posted or referenced. This banning is seemingly more common for subscribers who pay for access on the forum, so it would be suggested never to utilize their paid services or support advertising on that site.


Our Resources

While Unique Diesel does understand and know a tremendous amount about these engines, the sharing of this information is not our primary focus. The production and making available products to sell for the 6.2 and 6.5 engines is our focus, as this is a business. There is no one-stop shop for everything 6.2 and 6.5 Diesel, and we don't pretend to be. If you would like to be direct and pay for our time in addressing your questions you can do so with the following services.