Copyright © 1996-2021 by
2021 - The Diesel Page's 25th Anniversary
Web Site Launched February 1996
Updated July 13, 2021

Information Resource for the
General Motors 6.2L/6.5L & Duramax Light-Truck Diesel Engines

The Diesel Page is a member-supported web based magazine and enthusiast group, which focuses on all model-years of the General Motors light-truck 6.2L, 6.5L and the Duramax 6600 diesel engines. The Diesel Page has been online since early 1996 - the longest running GM Diesel web site and bulletin board forum on the net.

We're here to help you maintain and repair your 6.2, 6.5 or Duramax diesel powered truck, find solutions for diesel fuel injection problems, increase performance, locate the best and least expensive parts sources, repair and upgrade the Chevrolet and GMC light-duty trucks, and we'll help improve your satisfaction in owning a General Motors 6.2L - 6.5L - 6.6L diesel powered light-truck. If your interest is in the Duramax 6600, we have the most comprehensive collection of new GM diesel pickup truck information found anywhere. Our membership program also helps each of us share a common interest and learn from each other.

What we know came from a wide variety of sources - including touring the DMAX and GEP (General Engine Products - aka AM General) engine production facilities located in Moraine (DMAX) and Franklin (GEP) Ohio, discussions with diesel mechanics from all across the U.S. and Canada, time spent in local performance engine rebuilding shops, more than two decades of communication with countless GM diesel owners, and continuous first-hand ownership experience with the 6.2L/6.5L diesel engines since 1986 - and the Duramax 6600 since December 2000.

This is not a General Motors Corporation web site, nor are we diesel mechanics. In addition to owning a series of GM diesel-equipped pickup trucks and SUVs since 1986, our qualifications come from a broad-based technical training, professional automotive writing and photography experience, and a desire to learn more about the GM diesel engines. This web site does not sell replacement parts or aftermarket performance products for your truck. Instead, we provide the most valuable and unbiased editorial found anywhere for the GM diesel pickups and SUVs.

The GM light-truck 6.2L and 6.5L diesel engines were optional in the 1982-2000 C/K series pickup trucks, and in the Suburban, Chevy Tahoe & Blazer, GMC Yukon & Jimmy, vans, and even in Class A motor homes (RV) - in both turbo diesel (TD) and naturally aspirated (NA) versions. In addition, low cost and ready availability have made these engines extremely popular the world over for diesel conversion projects; powering Land Rovers, Land Cruisers, and a host of other foreign and domestic production vehicles. In addition, the Duramax 6600 has proven itself flexible enough to be considered for a variety of repower projects.

Designed as a diesel engine from the ground up by the Detroit Diesel Division of General Motors, the original 6.2L diesel engine was introduced in the 1982 model year GMC and Chevy C/K pickup truck and full-size SUV lines. Taking this engine design to the next level in the 1992 model year, the new 6.5L diesel engine was an advancement in technology, and was designed for the application of a turbocharger. The 6.2L saw its final year of production in 1993. While the 6.5 was replaced by the Duramax 6600 beginning in the 2001 model-year Chevy and GMC pickup truck production, the 6.5L diesel engine continues to be manufactured and sold by AM General. AM General was the manufacturer of the civilian H1 Hummer and the current military HMMWV. Support for the 6.2/6.5 will continue to be a big part of The Diesel Page well into the future.

We here at The Diesel Page have experienced poor quality windshield glass replacement in the recent past. To help prevent disappointment in the quality of auto glass replacements currently available, we recommend being informed about what to look out for and learn more about the available options. Diesels and Windshield Care: The windshield on your diesel truck is a vital part that ensures safety and visual clarity when in use. Depending on the state in which you reside, if your GM diesel has a damaged windshield (cracks or chips), it could be illegal to operate as well as a dangerous distraction while driving. It is important to have your auto glass replaced and to find a company that specializes in using quality products. A lot of times, vehicle repair shops or dealerships will not have the glass products or industry knowledge to assist you. Consider actual glass specialists like SunTec Windshield Replacement of Mesa AZ whose team can locate, source, repair and replace windshields for all types of diesel trucks. Professional auto glass companies, like SunTec, use only factory or OEM windshield products and never aftermarket or salvaged glass. When considering a windshield replacement in Mesa, Arizona or anywhere else in the states, always ensure that the company is installing either the same factory glass part or an OEM version, which is the same as original. These simple steps will help you get your GM diesel truck back on the road again and with an auto glass replacement that has a proper fit and quality to ensure longevity and safety.

The Diesel Page has expanded coverage of GM's diesel engines since the introduction of the Duramax 6600, which is a result of a joint venture between Isuzu and the General Motors Corporation (forming DMAX Ltd.). We'll have all of the latest test reports and event coverage as that information becomes available for the LB7 / LLY / LBZ / LMM / LML Duramax 6600 diesel engines, as well as Allison 1000 series 5-speed & 6-speed automatic transmissions. Our professionally written product coverage and bulletin board discussion forum will have the latest information concerning the Duramax, as well as product reviews covering electronic upgrades such as chips, tuners, and programmers.

The following topics cover a wide range of subjects related to the General Motors and AM General 6.2/6.5/6.6 diesel engines. A lot of this information is available free of charge, but we hope you will take advantage of the many benefits a subscribing membership offers, and become a subscriber today using the online security provided by PayPal. Your membership is appreciated, and your support is essential to help keep The Diesel Page on-line. A 1-year membership includes access to all of the technical resource and troubleshooting links found in the Members Area. Thank you for visiting!

Articles & Content:

  • What's New: July 13, 2021 - * 2021 marks our 25th anniversary on the Net! The Diesel Page was the very first diesel pickup community web site - for any brand of diesel pickup. See all of the latest editions of our 6.2L/6.5L Diesel Book Series.
  • Current Articles: Duramax Intake Hoses, 2020 Battery Selection and Maintenance, 1998 Chevy LBZ Conversion, War in the Desert, Auto Glass Replacement, 2001+ Headlight Repair, 6.2L/6.5L Tech Tips 2017, Replay from 2007: DirtyMax ProStock Racing, Rust, GM's 2017 6.6L L5P Duramax V-8 Turbo Diesel, Duramax Water Pump Replacement - Part I & Part II, 700R4 Thottle Valve Bracket, Front Hub Bearing Assembly Replacement, Dr. Lee's Perennial Project Truck, 6.5L & Duramax Crankshafts, Diagnostic Trouble Code P0087, 1999-2007 Power Window Regulator Service, Measuring & Fitting 6.5L Diesel Main & Rod Bearings, Measuring & Fitting 6.5L Diesel Pistons, Turbocharger Selection... and so much more!
  • Current Product Reviews: Phaser Dual-Idler 6.5L Gear Drive Timing Set, Banana Pan - Cast Aluminum Oil Pan for the Duramax, MagnaFlow Performance Exhaust System, Automotive CAN OBD2 Code Scanner, Amsoil's Dual By-Pass Oil Filtration System, 2001-2007 2500HD/3500 NVG-261/263 Transfer Case Leak Prevention, ATS Allison Extreme, Custom Programming the LLY, Custom Programming the LB7, and more.
  • GM Diesel related Manufacturers and Suppliers:
    Please visit our supporting vendors!
  • New Product Announcements: Edge Evolution CS/CTS, BD Cam Caster Adjustor Kit, Forged-Steel 6.5L Diesel Crankshafts, Licensed Duramax Diesel hats & t-shirts, Oil Centrifuge Filtration Kit, DTech FSD/PMD Replacement, 6.5TD Engine Oil Cooler & line kits, EFI-Live Duramax Programmer, Duramax Diesel hats & t-shirts, Winter vehicle heating products, 6.2/6.5 Injector Socket, Constant pressure clamps, Aftermarket 6.5 Engine Oil Cooler Lines, FSD Extension harnesses and more..
  • More Power!!! for the 6.5TD: Learn more about 6.5L Turbo Diesel Performance and Power Upgrades...
  • Duramax 6600: Diesel truck news, product reviews, feature articles, tech info and a whole lot more.....
  • Diesel Economics and Fuel Economy: High fuel prices?
  • Classified Advertisements: Always updated, more trucks, Suburbans & engine parts....
  • Reader Recommended GM Dealer Service: We need your input....
  • Readers' Rigs: Member Rides & pics
  • Learn More About The Diesel Page:
  • What Members Say About The Diesel Page:
  • Link Exchange: Exchange Links with

  • Member's Area: Subscriber section for even more content, including technical articles, troubleshooting and community interaction.

  • Membership Application: Secure on-line form!!

The Diesel Page - Books & How-To Guides

You can view the table of contents and see what each book contains by clicking the following links.

The Diesel Page welcomes your comments, suggestions or questions. Some of these questions and answers could be included in a future Question & Answer segment appearing either online here in The Diesel Page or in a related industry print or CD publication. Names and e-mail addresses can be with-held at your request. Published E-mail Questions & Answers reflect the opinions of the authors, and we reserve the right to edit letters for clarity, brevity or for other purposes.

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