At Cotton's Custom Diesel, we offer comprehensive oil and fluid services tailored to your truck's specific needs. Our experienced technicians use high-quality oils and fluids that meet or exceed manufacturer specifications. Engine Oil Change: Our engine oil change service includes draining the old oil, replacing the oil filter, and filling the engine with premium-grade oil. We also perform a thorough inspection of your engine to detect any potential issues early. Transmission Fluid Change: Our transmission fluid service involves draining the old fluid, cleaning the transmission pan, replacing the filter if necessary, and refilling it with high-quality transmission fluid. This service can help prevent transmission problems and ensure smooth, efficient gear shifts.
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Choosing Cotton's Custom Diesel for your oil and fluid services means choosing quality, expertise, and exceptional customer service. Our team of certified technicians has extensive experience with trucks, and we use the latest diagnostic tools and equipment to provide accurate, reliable services.
Don't wait until it's too late. Regular oil and fluid services can significantly extend the life of your truck and improve its performance. Visit us at Cotton's Custom Diesel in Butler, PA, for expert oil and fluid services you can trust.
While we’re based in Butler, PA, we also service the following municipalities and relevant areas:
Simple repairs are often the most important. Maintaining your fluids is essential to your vehicle's proper function and longevity. Our technicians can change your oil and fluids in a jiffy, and it’ll typically cost around $250.
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.
