Howes Diesel Defender injector cleaner and fuel lubricator
Diesel Defender cleans the fuel system and increases lubricity for heavy-duty engines. Independent tests show wear reduction and deposits removal; customers note improved fuel efficiency
Highlights
- adds up to 2.5x lubricity
- cleans injectors and fuel system
- lab-tested wear-scar reduction
Pros
- Improves lubricity in diesel fuel
- Cleans fuel injectors and removes carbon deposits
- Treats the entire fuel system with multiple uses
- Positive user feedback on engine performance and fuel efficiency
- Lab-backed wear-scar performance claims
Cons
- No price or availability details in description
- Performance claims based on tests; real-world results may vary
- Requires multiple treatments for full cleaning
Best For
Features
- Improved lubricity up to 2.5x compared to other Howes products and many on the market
- Reduces wear scars in heavy-duty diesel engines by protecting fuel system components
- Cleans fuel injectors with IDX4 Detergent to remove carbon deposits and improve spray pattern
- Designed to treat the entire fuel system within three applications and limit new deposits
- Supports water removal from fuel to help maintain fuel economy and injector efficiency
