Drew Callahan · July 4, 2026
⚠️ Safety Disclaimer: This guide is for informational purposes only. Working under a diesel pusher involves crush hazards, hot driveline components, and pressurized systems. Always chock the wheels, set the parking brake, and consult a certified RV or chassis technician for safety-critical service. Most Dutch Star owners are diligent about the house side of the … Read more
Drew Callahan · May 30, 2026
Key Takeaways The Newmar Dutch Star hydraulic leveling and slide-out system uses the HWH hydraulic platform, which requires periodic filter and fluid changes — typically every 2 to 3 years or 10,000 miles.HWH-approved fluid for most Dutch Star applications is…
Drew Callahan · May 29, 2026
Key Takeaways Newmar Dutch Star models (2016–2022) equipped with Cummins ISL 8.9L or ISB 6.7L engines require fuel filter replacement every 15,000–25,000 miles or annually, per Cummins service guidelines.The fuel system includes two serviceable filters: a primary fuel filter (secondary…
Drew Callahan · April 24, 2026
I’ve got the engine compartment of a 2019 Newmar Dutch Star open on a cold November morning, and I’m staring at what should be a straightforward fuel filter swap that turned into a three-hour diagnostic because the Onan Quiet Diesel generator wouldn’t turn over cleanly — battery terminals are clean, fuel lines are pressurized, but … Read more
Drew Callahan · March 14, 2026
I’ve got a capacitor sitting on my bench right now—pulled it off a Dutch Star that rolled through last week. The casing is bulged on one side, and if you look at the solder joints where it connects to the fan motor circuit board, they’re cracked and discolored from heat cycling. That’s what a dead … Read more
Drew Callahan · March 13, 2026
Most Newmar Dutch Star owners don’t realize their furnace’s igniter and control board are on borrowed time until the moment they fail—usually at night, usually in cold weather, usually when the nearest service bay is three hours away. The blower will spin and push air, but no spark, no flame, no heat. I’ve watched owners … Read more
Drew Callahan · January 9, 2026
Air Brake System Maintenance and Air Dryer Cartridge Replacement for NEWMAR DUTCH STAR Most Dutch Star owners don’t realize their air brake system is slowly filling with water until the brakes feel like they’re working through wet concrete on a mountain pass. A shop quoted me $1,200 in labor to swap the air dryer cartridge … Read more
Drew Callahan · January 8, 2026
Slide-Out Room Hydraulic System Service for NEWMAR DUTCH STAR Most Dutch Star owners ignore their slide-out hydraulic system until it stops moving — and by then, you’re either pinned in place or facing a repair bill that could’ve been prevented with basic maintenance. The thing is, hydraulics aren’t complicated once you understand what you’re looking … Read more
Drew Callahan · January 8, 2026
Diesel Engine Oil and Filter Service for NEWMAR DUTCH STAR I’m underneath the Dutch Star, oil drain pan positioned, socket fitted to the plug, and I can already tell by the color of what’s about to drain that the previous owner ignored the service schedule entirely. The oil that starts flowing is nearly black—darker than … Read more
