Our expert team is here to provide top-notch heavy-duty oil and fluid repairs to keep your trucks running smoothly on the road. From engine oil changes to addressing contained oil, no matter what, we've got you covered.
Is It Ok to Change Oil Once a Year?
It is essential to change your oil annually, even if you have driven less than 25,000 miles. Despite low mileage, engine oil can deteriorate over time due to exposure to temperature fluctuations, contaminants, and oxidation. Regular oil changes help maintain optimal lubrication, cooling, and protection for your engine.
What Does Black Engine Oil Mean?
Thick, very dark, or black engine oil typically indicates that your oil has been exposed to dirt or dust contaminants, leading to soot build-up. In direct-injection diesel engines, soot is a natural byproduct, causing your oil to turn black and thick.
Commercial Truck Oil Change in Plaistow, NH
At Tri-State Diesel Repair, we follow a meticulous process for heavy-duty truck oil changes to ensure the best results:
Drain Old Oil: We begin by draining the old engine oil completely. This step is crucial to removing contaminants and used-up additives.
Replace Oil Filter: A clean oil filter is essential to trap impurities and protect the engine from harmful particles. We replace the oil filter with a high-quality one.
Check Oil Viscosity: Choosing the right oil viscosity is crucial for heavy-duty engines. Our experts ensure the correct oil type and viscosity for your specific truck model.
Inspect Oil Pan and Drain Plug: We carefully inspect the oil pan and drain plug for any signs of damage or leaks, addressing them promptly to prevent further issues.
Refill with Fresh Oil: We refill the engine with high-quality, heavy-duty oil that meets or exceeds manufacturer specifications.
Run the Engine and Check for Leaks: After the oil change, we run the engine and thoroughly inspect for any leaks or irregularities.
Areas We Also Serve For Oil and Fluid Service
We proudly bring our oil and fluid service to within 25 miles of Plaistow, NH, including the following areas:
New Hampshire
Central, NH; Southern, NH
Maine
Southern, ME
Massachusetts
North Shore, MA; Merrimack Valley, MA
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Full-Service Mobile Truck Repair Shop
New England Firewood, LLC
"I have been using Wrenchn-It Diesel for over 4 years now. Started with oil change for dump truck, mobile service for replacing hydraulic lines and belts on machines. Seth has always been there on short notice and is a great mechanic. Just a great overall guy and very easy to work with. Highly recommend!"
Craig Loring
"I gotta give a big shoutout to the team at WRENCHN’ IT DIESEL REPAIR! They went above and beyond to accommodate me and my family in getting our rig back on the road!
I CANT THANK YOU ENOUGH SETH!"
DANNY MOHAMMED
"Studs broke on my truck called all around nobody was able to fix it or had the time, called wrench it and he said no problem but it will be a wait,the man went pick up studs nuts and rims And came out to me and fixed in the rain. Thumbs up to this guy. All our truck repairs up in this area will be done by them. Highly recommend 👌"