Truck Oil & Fluid Services in Charlton, MA

From routine oil changes to complex fluid system repairs, we've got you covered. Trust us for reliable heavy-duty oil and fluid repairs in Charlton, MA.

From routine oil changes to complex fluid system repairs, we've got you covered. Trust C. M. T. S. for reliable heavy-duty oil and fluid repairs in Charlton, MA.

Why Is It Important to Regularly Change My Truck's Oil?

The performance and longevity of your heavy-duty truck are dependent on regular oil changes. Here’s why: 


Engine oil acts as a lubricant, reducing friction between moving parts and preventing wear and tear. Over time, the oil breaks down and loses its lubricating properties, putting your engine at risk.

Contaminant Removal

Engine oil collects dirt, debris, and other contaminants as it circulates through the engine. Regular oil changes remove these impurities, preventing them from clogging the engine and causing damage.

Engine Cleanliness

Fresh oil contains detergents that help keep the engine clean by minimizing the formation of sludge and deposits. Regular oil changes ensure that the engine stays clean and performs optimally.

Fuel Efficiency

Clean oil reduces friction and allows the engine to operate smoothly, improving fuel efficiency. Regular oil changes can help you save on fuel costs in the long run.

For reliable heavy-duty oil and fluid changes, visit our skilled mechanics at C. M. T. S., Charlton, MA, today! 

How Can I Tell if My Truck's Oil Needs to Be Changed?

Being able to recognize when your heavy-duty truck needs an oil replacement is a skill in itself and can go a long way in saving you both time and money. Keep your eye out for: 

  • Low oil level
  • Discolored oil
    (Healthy engine oil should be transparent and amber in color. Contaminated oil looks gritty, or milky)
  • Increased engine noise
    (Also knocking or ticking noises) 
  • Increased exhaust smoke

(Thick, dark smoke coming from the exhaust pipe)

  • Poor performance

(Sluggish acceleration, reduced power, or a decrease in fuel efficiency)

If your heavy-duty truck is showing any of these signs, then you require immediate oil and liquid attention from our team at C. M. T. S., Charlton, MA. Failure to address these issues now can result in more damage down the line and increase the chance of an accident on the road.

Customer Reviews

Check out what our customers have to say about our services.

"Had some truck troubles so pulled in off the Pike...They Diagnosed my problem, were kind enough to take the time to get me back on my route. Very knowledgeable and extremely friendly. Thank you guys I'd give them 6 stars if I could!"
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Andrew Lewis

"This is my go to place for repairs. Very hard working talented group here that can fix just about anything. Been dealing with them for many years now and I can always count on excellent and friendly service here. They also do some fantastic historical record keeping to keep you up date with exactly what’s going on with your equipment."
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jbgearhead, Local Guide

"Excellent service and very friendly place to get my RV serviced."
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Morio Kubota

Contact us

Choose C. M. T. S. for all your heavy-duty diesel truck repair needs. Contact us today to schedule an appointment at our truck repair shop in Charlton, MA. We look forward to getting your truck moving again!