Oil, fuel filters, coolant, glow plugs — keeping a diesel healthy between shop visits
Yes, diesel fuel can go bad — usually within 6-12 months once water, oxygen, or microbes get into the tank. Here's how to spot the warning signs before bad fuel wrecks your injectors or fuel pump.
Diesel generators fail for a short list of predictable reasons: wet stacking from low-load running, fuel contamination, weak batteries, and skipped filter changes. Here's how each problem starts, what it costs to fix, and the maintenance schedule that prevents it.
Diesel engines don't use spark plugs — they rely on compression to ignite fuel. Here's a clear, no-jargon breakdown of the 4-stroke cycle, fuel injection, turbocharging, and emissions systems that make diesels different from gas engines.
Gasoline and diesel don't separate like oil and water — they mix completely, and that's the problem. Learn why even a small gas-diesel mix-up can damage injection pumps, what to do if you misfuel, and what it costs to fix.
Diesel doesn't freeze solid like water, but cold weather can still stop your engine cold. Learn the real cloud point and gel point temps for #1 and #2 diesel, how to spot gelling before it strands you, and what actually fixes it.
Diesel almost always costs more per gallon than gasoline, but that's not the whole story. This guide breaks down 2026 pump prices, fuel economy differences, cost per mile, and when a diesel actually saves you money over the life of a vehicle.
A reefer is a refrigerated truck or trailer with its own diesel-powered cooling unit that keeps cargo cold in transit. Learn how reefer units work, what they cost to maintain, and how CARB rules affect older units.
Diesel is a petroleum-based fuel burned by compression instead of a spark. This guide covers how diesel differs from gasoline, cetane rating, fuel types, storage rules, and how to keep your fuel system healthy.
A diesel oil change isn't just gas-engine maintenance with a bigger filter. Diesel oil fights soot, acid and heat that gasoline oil never sees. Here's the right oil type, interval and cost for your engine — plus what happens if you skip it.
Injectors, turbos, fuel systems and what those trouble codes actually mean
DPF regens, DEF, EGR and SCR — how the emissions system works and fails
PM schedules, DOT inspections and keeping work trucks on the road
Motorhomes, tractors and farm diesel — service that comes to the field
Power Stroke vs Cummins vs Duramax, used-truck checks and ownership costs
What common diesel repairs cost and how to compare quotes
Emissions testing, delete laws and inspection rules by state
