Blog

Dirty, open engine compartment with black oil visible.
September 5, 2025
Diesel engines are workhorses known for their durability and torque, but they require consistent maintenance to run efficiently. One of the most overlooked services in diesel maintenance is fuel system cleaning. Over time, diesel fuel systems accumulate contaminants such as carbon deposits, algae, water, and sludge,
Open car engine with exposed valve train, coated in black oil, under the hood of a vehicle.
August 11, 2025
When temperatures drop, diesel engines start to behave differently. Cold weather thickens fuel and oil, reduces battery output, and stresses engine components in ways that warm weather doesn't. If a diesel engine isn’t prepared for the winter months, it can struggle to start, run inefficiently,
A man is working on the engine of a truck.
July 16, 2025
Diesel engines are built for endurance, but like any hardworking machine, they need proper attention to stay in top shape. Whether used in trucks, generators, or heavy equipment, diesel engines require regular upkeep to avoid costly breakdowns and downtime.
A car engine is being lifted by chains in a garage.
June 4, 2025
Heavy-duty diesel vehicles are built to handle tough jobs, long hauls, and demanding environments. But even the most rugged diesel engines require regular preventative maintenance to operate at peak performance.
A man is working on a car engine in a garage.
May 13, 2025
Diesel truck owners depend on performance, power, and longevity. However, with rising fuel costs and the demand for better mileage, improving fuel efficiency has become just as important as maintaining horsepower.
A man is working on a car with the hood open.
April 21, 2025
Diesel engines are workhorses built for power and longevity, but like any machine, they need consistent upkeep to deliver peak performance. Among the most vital aspects of diesel engine maintenance is the regular oil change.
March 19, 2025
Your diesel engine is a workhorse, built to withstand heavy loads and long hours on the road. However, like any machine, it can develop issues over time. Recognizing the warning signs early can save you from costly repairs and unexpected breakdowns.
February 28, 2025
Diesel engines are built for power and durability, but without proper maintenance, even the toughest trucks can experience breakdowns and costly repairs. At Real Deal Diesel in LaFollette, Tennessee, we specialize in full-service diesel repair, maintenance, diagnostics, and DOT inspections.