Most roadside breakdowns are not bad luck, they are skipped maintenance. A missed oil change, an overlooked coolant leak, or worn brake linings that never got caught during a pre-trip inspection are the real reasons trucks end up on the shoulder of I-5. Capital Diesel provides mobile truck and trailer preventative maintenance throughout Sacramento and the surrounding area, bringing scheduled service directly to your yard, job site, or fleet location so staying current on PM never means losing a truck for a day.
Our preventative maintenance service covers all critical systems on your truck and trailer. Every PM visit includes an engine oil and filter change, fuel filter replacement, coolant level and condition check, air filter inspection, belt and hose inspection, battery and charging system test, brake inspection and adjustment, tire pressure and tread depth check, lubrication of all grease points, and a full lights and electrical walkthrough. We document everything inspected and flag any items that need attention so you have a clear picture of your truck's condition after every visit.
We serve owner-operators running a single truck and fleet managers responsible for dozens of units throughout the Sacramento area. Whether you run local delivery routes, long haul freight, or heavy construction equipment, keeping your trucks on a consistent PM schedule is the single most effective way to reduce repair costs, extend engine life, and stay ahead of DOT compliance issues. Capital Diesel covers Sacramento and the surrounding area within a 50-mile radius, including Elk Grove, West Sacramento, Roseville, Rocklin, Davis, Folsom, Woodland, Citrus Heights, Rancho Cordova, and Rio Linda.
To schedule a preventative maintenance visit for your truck, trailer, or fleet, call (916) 949-4882 Monday through Friday, 8am to 5pm. Our diesel mechanics come to you, work around your schedule, and get your equipment back in service the same day in most cases.
We Come to Your Yard or Fleet Location: No need to drive your truck to a shop and wait. Our mobile maintenance unit comes to you, services your equipment onsite, and gets it back in rotation the same day with minimal disruption to your operation.
Detailed Inspection Reports Every Visit: After every PM, we provide a written summary of everything inspected, everything serviced, and any items flagged for follow-up. You always know the exact condition of your equipment, not just that it was serviced.
Covers Both Trucks and Trailers: We perform preventative maintenance on power units and trailers together in a single visit, so your full rig is serviced at the same time without coordinating separate appointments.
Interval Scheduling That Fits Your Operation: Whether you run on mileage intervals, engine hours, or calendar-based schedules, we build a PM program around how your trucks actually operate instead of forcing a one-size-fits-all schedule.
Catch DOT Violations Before an Inspector Does: Our brake, lighting, and safety system checks are performed with DOT inspection standards in mind. We flag out-of-adjustment brakes, lighting faults, and worn components before they turn into violations on the road.
All Major Brands and Configurations Serviced: We perform preventative maintenance on Kenworth, Peterbilt, Freightliner, Western Star, Volvo, International, Mack, Hino, Isuzu, and most other commercial truck and trailer makes across the Sacramento area.

What is included in a standard truck preventative maintenance visit from Capital Diesel?
Every PM visit includes an engine oil and filter change, fuel filter replacement, coolant check, air filter inspection, belt and hose inspection, battery and charging system test, brake inspection and adjustment, tire pressure and tread depth check, full lubrication service, and a lights and electrical walkthrough. We also provide a written inspection report at the end of every visit.
How do I know when my truck is due for preventative maintenance?
Most diesel trucks follow a PM interval of every 15,000 to 25,000 miles depending on engine type, load, and operating conditions. We can review your truck's service history during the first visit and recommend an interval that matches your actual operation rather than a generic mileage target.
Can you service our entire fleet at our yard in Sacramento?
Yes. Capital Diesel works with fleet operators throughout the Sacramento area to schedule onsite PM visits at your facility. We can service multiple units in a single visit and work around your dispatch schedule to minimize operational disruption. Call (916) 949-4882 to discuss a fleet maintenance program.
Do you perform preventative maintenance on trailers as well as trucks?
Yes. We service both power units and trailers, including brake inspections and adjustments, lighting checks, landing gear lubrication, glad hand inspections, and tire checks on tandem axle trailers, flatbeds, reefer trailers, and drop decks.
Will you flag problems you find during the PM even if I did not ask for a repair?
Absolutely. Our technicians document every item that needs attention during the PM visit and walk you through the findings before leaving. We never perform additional repairs without your approval, but we make sure you have the information you need to make an informed decision.
How far will you travel for mobile preventative maintenance in the Sacramento area?
Capital Diesel covers Sacramento and the surrounding area within a 50-mile radius, including Elk Grove, West Sacramento, Roseville, Rocklin, Davis, Folsom, Woodland, Citrus Heights, Rancho Cordova, and Rio Linda. Call (916) 949-4882 to confirm coverage for your yard or fleet location.