Ram 2500 & 3500 Maintenance in Washington UT
Cummins diesel or Hemi gas — we know what Ram trucks demand on Southern Utah roads.
Ram HD owners in Southern Utah tow heavy, work hard, and wheel often. We follow Ram-recommended intervals adjusted for Washington County heat, grade, and dust — because the factory schedule assumes a milder world than we drive in.
ServiceIntervals
Every 5,000–7,500 miles
Full-synthetic oil & filter change (Cummins takes 12 quarts of 15W-40 diesel oil), tire rotation, and multi-point inspection. Southern Utah heat and dust pull us to the shorter side, especially on tow rigs and work trucks.
Every 15,000 miles
Cummins fuel filter service (two-stage — primary chassis-mounted and secondary engine-mounted), transfer case fluid inspection on 4WD, engine air filter, and cabin filter.
Every 30,000 miles
Transmission fluid & filter (68RFE or Aisin AS69RC), spark plugs on 6.4L Hemi, brake fluid flush, and differential fluid front and rear.
Every 60,000 miles
Major service — front axle service, all driveline fluids replaced, cooling system inspection, and comprehensive drivetrain health check with a photo-documented digital report.
CumminsSpecifics
6.7L Two-Stage Fuel Filters
The 6.7 Cummins runs a chassis-mounted primary and an engine-mounted secondary. Both replaced every 15,000 miles — sooner with off-brand diesel or heavy off-road exposure.
Diesel Exhaust Fluid
DEF quality and level checked at every service. Contaminated DEF triggers derate and expensive sensor failures on 2013+ trucks.
CP3 vs CP4 Advisory (ISB6.7)
Most 6.7 Cummins ran the robust CP3. Some later model years shifted to CP4 — we know which VINs are which and inspect accordingly.
EGR & DPF Awareness
EGR cooler condition, DPF regen behavior, and turbo actuator function — the top three Cummins drivability items we diagnose.
Common RamIssues We See
HPFP Awareness
High-pressure fuel pump wear on high-mileage Cummins engines. We monitor rail pressure and inspect for early symptoms — hard starts, power loss, and metal in the filter.
Transmission Concerns on Heavy Towers
68RFE transmissions in heavy tow service benefit from more frequent fluid service and thermal monitoring. Aisin AS69RC is more durable but still needs scheduled service.
Front Axle Wear
Ball joints, unit bearings, and steering box wear from heavy loads and off-road use. Inspected at every service.
Steering & Track Bar
Ram HD trucks have known steering geometry wear points. Death wobble is a symptom — we hunt the root cause.
Serving Washington, St. George, Hurricane, and all of Washington County.
Keep Your Ram Working
Book scheduled maintenance and stay ahead of the failure curve.
Frequently AskedQuestions
How often should I change oil in a 6.7 Cummins?
Ram's spec is up to 15,000 miles under ideal conditions, but in Southern Utah — with heat, dust, towing, and idle time — we recommend 5,000 to 7,500 miles on 15W-40 diesel-rated oil. The 6.7 Cummins takes about 12 quarts, so quality oil matters. Idle-heavy work trucks and heavy tow rigs should stay on the shorter side of that window.
Does the 68RFE transmission need frequent service?
Yes — especially on trucks that tow. Ram lists a lifetime fill, but in towing and heat-heavy use the 68RFE benefits significantly from fluid and filter service every 30,000 to 60,000 miles. Neglected 68RFEs fail early and expensively. Aisin AS69RC is more durable but still needs scheduled fluid service to reach full life.
Do you service Ram 3500 dually trucks?
Yes — including full oil service, transmission, front axle, brake service, and diagnostics. Dually rear-wheel service (torque, brake, and bearing) is part of our standard 3500 workflow. We have the lift capacity and tools for full HD truck service.
Ready to GetStarted?
Call MST Motorsports today or schedule your appointment online. Serving Washington, St George, Hurricane, and all of Southern Utah.