Don’t spend your hard-earned cash on excessive coolant flushes and fills. Get proper coolant system maintenance with Cotton’s Custom Diesel located in Butler, PA. With our expert service, we’ll give you the information and maintenance schedule you need to keep your diesel truck performing optimally.
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No — it's not necessary to flush your coolant with every change. Although some shops recommend it, a regular drain-and-fill will work well. Frequently flushing your coolant is a waste of your time and money.
That being said, we recommend following your owner's manual. If it gives a timeframe for a full flush, you should stick to what it says. For older trucks, a full flush will help keep debris out of the system, preventing rust and corrosion.
Like all regular maintenance, neglect will cause poor performance. We suggest you stick to your regularly scheduled maintenance to avoid any coolant system-related issues down the line.
If it's been a while and you've neglected your truck, the following issues might mean you need a flush:
You'll definitely want to bring in a new vehicle around the 75,000km mark. After that, coolant flushes should be done once every 50,000km — which is to say every few years, depending on your driving. But as always, we recommend you stick to your manual's guidelines for more information.
Cotton's Custom Diesel is dedicated to serving diesel truck owners in Butler, PA, and the surrounding areas. We provide our top-notch services to customers in Butler, Saxonburg, Kittaning, Worthington, Zelienople, Prospect, Portersville, Slippery Rock, West Sunbury, Chicora, East Brady, and Ellwood City, PA. Whether you need coolant system maintenance, repairs, or performance upgrades for your diesel truck, our experienced team is ready to deliver exceptional service wherever you are located within our service area. Schedule an appointment today!
Our coolant system service starts at $99 for maintenance or more for repairs!
Very happy with the work done at Cotton’s Custom Diesel. Appreciate their effort to get me up and running at a fraction of the cost the dealer was charging.

Amazing people and outstanding service! I came in to get a leveling kit installed on my Silverado, and they gave me a very competitive quote and did an excellent job. They’re genuine, down-to-earth folks who clearly love what they do—and it shows. Their shop is clean, organized, and fully equipped to handle just about anything. This will definitely be my go-to shop for any future upgrades I want for my rig.

These guys worked past closing on a Friday to get my truck done! Glad I drove almost 2 hours from home to get the work done. Well worth the drive.
