Oil changes are integral to the performance, longevity, and reliability of your diesel truck. At Glenn's Auto & Truck Repair in Petaluma, our expert mechanics understand the importance of good quality oil, changed at correct intervals, in allowing you to get the most out of your Cummins, Powerstroke, or Duramax diesel.

Your fleet or commercial vehicles most likely spend a lot of time idling. Whether it’s to keep warm or simply out of convenience, the stop and go lifespan of these vehicles mean idling is a part of their duties. But, is it bad for them? Glenn's Auto & Truck Repair in Petaluma, CA has the information you need.

Here at Glenn's Auto & Truck Repair in Petaluma we often do diagnostics and sometimes the problem is obvious after hooking the car up to the computer and reading the codes.  However, sometimes it isn't obvious during a test drive or after hooking it up to all those computer programs!  You know there is a problem and a Check Engine Light is on with the fleet customer telling you the car has been having issues starting and the light has been going off and on depending on several factors.  No pattern, no simple answer but the problem becomes obvious when you start following the "threads of the issue" thanks to all that ASE Technician training.

Are the tires on your diesel truck any good? At Glenn's Auto & Truck Repair in Petaluma, CA, we want you to be able to spot the difference between a good tire and one that needs to be replaced. Here’s a quick guide on what to watch out for.

Now that you know why your turbo is necessary, you’ll want to know what the turbocharger is made of. Turbos are intricate and precise components, but not actually all that complicated or difficult to understand. Here’s a rundown on the parts of a turbocharger, from Glenn's Auto & Truck Repair in Petaluma, CA.

Whether you drive a Chevy, Dodge, or Ford diesel truck, there are a variety of options out there for a replacement engine. Depending on your truck's worth, it may depend on the type of engine and the amount of money you want to put into it. You can purchase a used, rebuilt, remanufactured, or even new diesel engine to replace your old. At Glenn's Auto & Truck Repair in Petaluma, CA, we’re here to help you choose the right one. 

Diesel trucks are known for their incredibly reliable engines. At Glenn's Auto & Truck Repair in Petaluma, we know that the key to a reliable engine is good maintenance. In fleet trucks, the difference between a truck that lasts a million miles and a truck that needs new engine hinges on how well it has been maintained.

Whether you drive a Cummins, Duramax, or Powerstroke diesel truck, there’s a good chance you’re familiar with turbochargers. Over the past couple of decades, turbos have nearly become stock equipment on diesel pickups, and are becoming increasingly common on gas vehicles as well. But what are they, how do they work, and why are they there? Glenn's Auto & Truck Repair in Petaluma, CA has the answers.

Leaks and drips that get the interior of your vehicle wet are definitely an inconvenience. Sitting water promotes rust, bad smells, and can ruin your carpet. Furthermore, the water often seems to come from seemingly nowhere, adding to the frustration. From Glenn's Auto & Truck Repair in Petaluma, CA, here are some of the leading causes of water on your floor, and what you can do about it.

Performance chip installation is one of the perks of diesel truck ownership. At Glenn's Auto & Truck Repair in Petaluma, our mechanics can professionally tune and install a chip for any application, whether you drive a Cummins, Powerstroke, Duramax, or otherwise.

If your brake lights are giving you trouble, it’s something you want to get fixed. It’s a safety hazard, and you might also get a ticket out of it. Why aren’t they working, and what can you do about it? Glenn's Auto & Truck Repair in Petaluma, CA has the answers.

Whether you drive a Ford, Chevy, or Ram diesel truck, your tires are an important aspect of the way your truck performs. At Glenn's Auto & Truck Repair in Petaluma, CA, we’re here to keep you in the loop on what type of tires are out there for you, and what your tires say about the condition of your truck.

If there’s an issue with your diesel fuel system, the most important thing to remember is to fix it sooner rather than later. With gas engines, you can often power through a fuel issue for quite some time - they’re irritating, but not often permanently damaging.