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David Hilgendorf

David Hilgendorf

AMSOIL Technical Writer and 20-year veteran of the motorcycle industry. Enjoys tearing things apart to figure out how they work. If it can’t be repaired, it’s not worth owning.

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  • Your Ultimate Oil Change
    News
    Product HighlightsIndustry News

    Your Ultimate Oil Change

    Right product. Right package. Right to your door.
  • Turn More Heads with AMSOIL Car Care
    News
    Product HighlightsIndustry News

    Turn More Heads with AMSOIL Car Care

    AMSOIL car-care products are engineered with advanced technology to deliver powerful cleaning action that helps vehicles shine brighter.
  • What AMSOIL Motor Oil is Right for You?
    News
    Product HighlightsAsk AMSOIL

    What AMSOIL Motor Oil is Right for You?

    No matter what you drive or how you drive, AMSOIL provides specially formulated motor oil designed to protect your vehicle.
  • AMSOIL Sponsors Your Favorite Motorcycle Rallies
    Events
    Motorcycle RalliesMotorcycles

    AMSOIL Sponsors Your Favorite Motorcycle Rallies

  • How Exhaust Power Valves Improve Two-Stroke Performance.
    NewsHow To
    SnowmobileSnowmobile RacingAsk AMSOILSmall EnginesDirt BikeDirt Bike RacingOff-Road Racing

    How Exhaust Power Valves Improve Two-Stroke Performance.

    Restore your lost engine power.
  • Be Prepared for Winter Driving
    How To
    DieselAsk AMSOILCars & Trucks

    Be Prepared for Winter Driving

    Prepare your vehicle for hazardous roads before winter arrives.
  • AMSOIL Ultimate Callout Challenge
    EventsTeam AMSOIL
    Diesel Events

    AMSOIL Ultimate Callout Challenge

  • Boosted Protection for Riding in Harsh Western Environments
    NewsHow To
    ATV/UTVAsk AMSOIL

    Boosted Protection for Riding in Harsh Western Environments

    When driving in remote terrain, be sure to prep your ATV or UTV with additional protection and recovery equipment.
  • Premium Protection for Turbocharged UTVs
    How To
    ATV/UTVProduct Highlights

    Premium Protection for Turbocharged UTVs

  • Premium Protection for High-Performance Snowmobiles
    How To
    SnowmobileProduct Highlights

    Premium Protection for High-Performance Snowmobiles

  • What is the Shelf Life of Motor Oil and Grease?
    NewsHow To
    Product HighlightsAsk AMSOIL

    What is the Shelf Life of Motor Oil and Grease?

  • The Importance of Antioxidants in Marine Oil
    How To
    Product HighlightsMarine

    The Importance of Antioxidants in Marine Oil

  • 4 Sturgis Motorcycle Rally Must-Ride Destinations
    How ToEvents
    MotorcyclesAsk AMSOILMotorcycle Rallies

    4 Sturgis Motorcycle Rally Must-Ride Destinations

    The Black Hills and Badlands are two memorable Sturgis Motorcycle Rally destinations.
  • Keep Your Harley-Davidson Running Perfectly
    Ask AMSOILProduct HighlightsMotorcyclesMotorcycle Rallies

    Keep Your Harley-Davidson Running Perfectly

  • AMSOIL Motorcycle Oil is Engineered for Extremes
    News
    MotorcyclesProduct HighlightsAsk AMSOIL

    AMSOIL Motorcycle Oil is Engineered for Extremes

  • AMSOIL Marine Engine Oil is Engineered for Extremes
    News
    MarineProduct Highlights

    AMSOIL Marine Engine Oil is Engineered for Extremes

  • Upgraded Performance and Protection for Indian Motorcycles
    MotorcyclesProduct Highlights

    Upgraded Performance and Protection for Indian Motorcycles

  • Fix Hard-Starting Two-Stroke Engines
    How To
    Product HighlightsSmall Engines

    Fix Hard-Starting Two-Stroke Engines

  • Combat the Effects of Cold Temperatures
    How To
    Ask AMSOILDieselProduct HighlightsCars & Trucks

    Combat the Effects of Cold Temperatures

  • Top 5 Skid Steer Maintenance Tips
    How To
    DieselAsk AMSOIL

    Top 5 Skid Steer Maintenance Tips

  • Protect Your Firearms and Improve Their Reliability
    How To
    Product HighlightsAsk AMSOIL

    Protect Your Firearms and Improve Their Reliability

  • Oil Filtration Basics: Capacity, Efficiency, Flow and Durability
    Bypass FiltrationHow To
    Ask AMSOILATV/UTVDieselMarineProduct HighlightsMotorcyclesSnowmobileSmall EnginesDirt BikeCars & Trucks

    Oil Filtration Basics: Capacity, Efficiency, Flow and Durability

  • 1,000 Horsepower Supercharged LS Engine Build
    NewsHow To
    Cars & TrucksAMSOIL HQProduct Highlights

    1,000 Horsepower Supercharged LS Engine Build

  • How To Protect Your Snowmobile Engine
    Product HighlightsSnowmobileSnowmobile Racing

    How To Protect Your Snowmobile Engine

  • Scott Douglas Inducted into Off-Road Hall of Fame
    News
    Industry NewsSponsorshipsOff-Road Racing

    Scott Douglas Inducted into Off-Road Hall of Fame

  • AMSOIL Metric Motorcycle Oil 8,000-Mile Torture Test
    NewsHow To
    MotorcyclesProduct Highlights

    AMSOIL Metric Motorcycle Oil 8,000-Mile Torture Test

  • AMSOIL Hybrid Motor Oil Protects Hybrid Vehicle Engines
    News
    Cars & TrucksProduct Highlights

    AMSOIL Hybrid Motor Oil Protects Hybrid Vehicle Engines

  • Understanding Engine Oil Specifications
    How To
    ATV/UTVDieselMarineProduct HighlightsMotorcyclesSnowmobileAsk AMSOILSmall EnginesDirt BikeCars & Trucks

    Understanding Engine Oil Specifications

  • Extreme Heat is Hard on Your Motorcycle
    How To
    Ask AMSOILMotorcyclesMotorcycle RalliesDirt Bike

    Extreme Heat is Hard on Your Motorcycle

  • How To Protect Pneumatic / Air Tools
    Product HighlightsDieselAsk AMSOILSmall EnginesCars & Trucks

    How To Protect Pneumatic / Air Tools

  • Neglected Equipment – Air Compressors
    Ask AMSOILProduct HighlightsSmall Engines

    Neglected Equipment – Air Compressors

  • Awesome Uses and Simple Life Hacks for Metal Protector
    How To
    Product HighlightsATV/UTVDieselMarineMotorcyclesSnowmobileAsk AMSOILSmall EnginesDirt BikeCars & Trucks

    Awesome Uses and Simple Life Hacks for Metal Protector

  • AMSOIL-Sponsored Motorcycle Rallies
    Events
    Motorcycle RalliesMotorcyclesSponsorshipsAsk AMSOIL

    AMSOIL-Sponsored Motorcycle Rallies

  • Should I Use Racing Oil in My Daily Driver?
    How ToEventsTeam AMSOIL
    Cars & TrucksDieselDiesel EventsProduct HighlightsCar RacingAsk AMSOILOff-Road Racing

    Should I Use Racing Oil in My Daily Driver?

  • DOMINATOR® Synthetic Racing Oil Wins Races
    Team AMSOIL
    Product HighlightsDieselDiesel EventsScott BirdsallMarineCar RacingAsk AMSOILBrad LovellBryce MenziesCars & TrucksOff-Road RacingScheuring Speed Sports

    DOMINATOR® Synthetic Racing Oil Wins Races

  • How To Maintain Your Personal Watercraft
    How To
    MarineProduct HighlightsAsk AMSOIL

    How To Maintain Your Personal Watercraft

  • AMSOIL Synthetic Motorcycle Oil vs. Harley-Davidson SYN3
    MotorcyclesProduct HighlightsAsk AMSOIL

    AMSOIL Synthetic Motorcycle Oil vs. Harley-Davidson SYN3

  • How Does AMSOIL Stack Up?
    How To
    Product HighlightsATV/UTVDieselMarineMotorcyclesSnowmobileSmall EnginesDirt BikeCars & Trucks

    How Does AMSOIL Stack Up?

  • What is a CVT / Continuously Variable Transmission?
    How To
    ATV/UTVSnowmobileAsk AMSOILSmall EnginesCars & Trucks

    What is a CVT / Continuously Variable Transmission?

  • Tech Tips: Maintaining Wheel Bearings
    How To
    ATV/UTVDieselMarineMotorcyclesSnowmobileAsk AMSOILSmall EnginesDirt BikeCars & Trucks

    Tech Tips: Maintaining Wheel Bearings

  • How To Fix Motorcycle Engine Knocking
    How To
    MotorcyclesProduct HighlightsAsk AMSOILDirt Bike

    How To Fix Motorcycle Engine Knocking

    Your bike can automatically detune its engine, but there's an easy fix.
  • <strong>Top 5 Things Affecting Outboard Performance</strong>
    How To
    MarineProduct HighlightsAsk AMSOIL

    Top 5 Things Affecting Outboard Performance

  • Save Time With ATV/UTV Oil Change Kits
    NewsHow To
    ATV/UTVProduct Highlights

    Save Time With ATV/UTV Oil Change Kits

    Everything needed for your ATV or UTV oil change, in one box.
  • How to Perform Oil Analysis
    How To
    Ask AMSOILDieselCars & Trucks

    How to Perform Oil Analysis

    Oil analysis provides a look inside your engine to gauge oil and component condition.
  • Reduce Maintenance with Synthetic Hydraulic Oil
    How To
    Product HighlightsAsk AMSOIL

    Reduce Maintenance with Synthetic Hydraulic Oil

    Increase equipment uptime with cleaner and more stable synthetic hydraulic oil.
  • Service Marine Lower Units to Prevent Water Damage
    How To
    MarineProduct Highlights

    Service Marine Lower Units to Prevent Water Damage

    Preventing rust and other water-related problems in marine lower units.
  • Understanding Fluid Lubrication and Protection
    Ask AMSOIL

    Understanding Fluid Lubrication and Protection

    Different methods of lubrication protect machines from wear.
  • Which Automatic Transmission Fluid Do I Need?
    How To
    Cars & TrucksProduct HighlightsAsk AMSOIL

    Which Automatic Transmission Fluid Do I Need?

  • Zero-Turn Mower Maintenance Best Practices
    How To
    Small Engines

    Zero-Turn Mower Maintenance Best Practices

  • Recreational ATV and UTV Riding Tips 
    How To
    ATV/UTVAsk AMSOIL

    Recreational ATV and UTV Riding Tips 

  • Why Do European Cars Require Special Oil?
    How To
    Cars & TrucksProduct HighlightsAsk AMSOIL

    Why Do European Cars Require Special Oil?

  • SABER® Professional Cuts Costs
    How To
    Small EnginesProduct HighlightsAsk AMSOIL

    SABER® Professional Cuts Costs

  • Snow Bikes Destroy Most Motor Oils
    How To
    Product HighlightsMotorcyclesSnowmobileTestimonialsDirt Bike

    Snow Bikes Destroy Most Motor Oils

  • AMSOIL vs. Mobil 1* Performance
    How To
    ATV/UTVDieselAMSOIL HQMarineProduct HighlightsMotorcyclesSnowmobileAsk AMSOILSmall EnginesDirt BikeCars & Trucks

    AMSOIL vs. Mobil 1* Performance

    AMSOIL Signature Series and Mobil 1 are two of the best motor oils, but is one better?
  • The Difference Between Motorcycle and ATV/UTV Oil
    MotorcyclesATV/UTVProduct HighlightsAsk AMSOILDirt Bike

    The Difference Between Motorcycle and ATV/UTV Oil

    Different powersports vehicle usage creates various challenges for motor oil.
  • 5 Expert Chainsaw Maintenance Tips
    How To
    Small EnginesProduct HighlightsAsk AMSOIL

    5 Expert Chainsaw Maintenance Tips

    Chainsaw maintenance keeps your saws running strong and cutting efficiently.
  • What Kind of Grease Do I Need?
    NewsHow To
    DieselProduct HighlightsAsk AMSOILCars & Trucks

    What Kind of Grease Do I Need?

    Eliminate the confusion in selecting the right grease.
  • Prepare Your Bike for Summer Riding
    News
    MotorcyclesProduct HighlightsAsk AMSOIL

    Prepare Your Bike for Summer Riding

  • Understanding Oil Viscosity
    How To
    Ask AMSOILATV/UTVDieselMarineMotorcyclesSnowmobileSmall EnginesDirt BikeCars & Trucks

    Understanding Oil Viscosity

    Viscosity is the measure of a fluid's resistance to flow.
  • A Closer Look at Grease
    How To
    Product HighlightsAsk AMSOIL

    A Closer Look at Grease

  • The Difference Between Horsepower and Torque
    How To
    Cars & TrucksATV/UTVDieselMotorcyclesSnowmobileAsk AMSOILDirt Bike

    The Difference Between Horsepower and Torque

  • Make Your Vehicle More Environmentally Friendly
    NewsHow To
    AMSOIL HQ

    Make Your Vehicle More Environmentally Friendly

    AMSOIL products are better for the environment.
  • The Importance of Dirt Bike Maintenance
    How To
    Dirt BikeProduct HighlightsMotorcyclesAsk AMSOIL

    The Importance of Dirt Bike Maintenance

  • How to Prevent Diesel Fuel Gelling
    How To
    DieselProduct HighlightsAsk AMSOIL

    How to Prevent Diesel Fuel Gelling

    Learn how to keep frozen diesel fuel from leaving you stranded.
  • Agricultural and Off-Road Equipment Grease
    How To
    DieselProduct HighlightsAsk AMSOIL

    Agricultural and Off-Road Equipment Grease

  • Superior Diesel Cold-Temperature Protection
    DieselProduct Highlights

    Superior Diesel Cold-Temperature Protection

  • Changing Snowmobile Chaincase Oil
    How To
    SnowmobileProduct HighlightsAsk AMSOIL

    Changing Snowmobile Chaincase Oil

    Changing snowmobile chaincase oil is easy.
  • Scheuring Speed Sports
    Team AMSOIL
    ATV/UTV RacingSnowmobile RacingScheuring Speed Sports

    Scheuring Speed Sports

    A legacy of racing success.
  • Classic Car and Truck Maintenance Tips
    How To
    Ask AMSOILCars & Trucks

    Classic Car and Truck Maintenance Tips

  • Antifreeze & Coolant Protects Your Engine
    Product HighlightsAsk AMSOILCars & Trucks

    Antifreeze & Coolant Protects Your Engine

  • What To Do When Your Snowblower Won’t Start?
    How To
    Small EnginesProduct HighlightsAsk AMSOIL

    What To Do When Your Snowblower Won’t Start?

    A snowblower that won't start is usually a fuel problem.
  • How Often Should I Change Differential Fluid?
    How To
    Ask AMSOILDieselProduct HighlightsCars & Trucks

    How Often Should I Change Differential Fluid?

    Fluid change intervals depend on your vehicle, driving conditions and gear oil quality.
  • The Grizzly Lodge in British Columbia Relies on AMSOIL Play Video
    Videos
    TestimonialsPeopleDieselProduct HighlightsSnowmobileSmall Engines

    The Grizzly Lodge in British Columbia Relies on AMSOIL

  • Your Manufacturer’s Warranty is Secure
    Ask AMSOILATV/UTVDieselAMSOIL HQMarineProduct HighlightsMotorcyclesSnowmobileSmall EnginesDirt BikeCars & Trucks

    Your Manufacturer’s Warranty is Secure

    AMSOIL lubricants maintain your factory vehicle and equipment warranties.
  • Long-Term Vehicle Storage Tips
    How To
    MotorcyclesAsk AMSOILSmall EnginesCars & Trucks

    Long-Term Vehicle Storage Tips

    Ensure your vehicle is ready to roll when you take it out of storage.
  • One Solution for Different Two-Stroke Mix Ratios?
    How To
    Small EnginesProduct HighlightsAsk AMSOILTestimonials

    One Solution for Different Two-Stroke Mix Ratios?

    Different equipment manufacturers recommend different two-stroke oil mix ratios.
  • Cold Storage Recommendations for AMSOIL Products
    How To
    Ask AMSOILProduct Highlights

    Cold Storage Recommendations for AMSOIL Products

    Cold-temperature storage can be detrimental to fluid performance.
  • Is Becoming an Independent AMSOIL Dealer Worth It? Play Video
    NewsHow ToVideos
    AMSOIL HQPeopleAsk AMSOILTestimonials

    Is Becoming an Independent AMSOIL Dealer Worth It?

    Becoming an Independent AMSOIL Dealer is a great way to make extra money.
  • How to Change Motorcycle Oil in 9 Simple Steps
    How To
    MotorcyclesATV/UTVAsk AMSOILDirt Bike

    How to Change Motorcycle Oil in 9 Simple Steps

    Step-by-step directions to walk you through the oil change process.
  • The 5 Approaches to Vehicle Maintenance
    How To
    Cars & TrucksATV/UTVDieselMarineMotorcyclesSnowmobileAsk AMSOILSmall EnginesDirt Bike

    The 5 Approaches to Vehicle Maintenance

  • How to Recover a Vehicle After Flood Damage
    How To
    Cars & TrucksAsk AMSOIL

    How to Recover a Vehicle After Flood Damage

  • The Best Performing ATV & UTV Oil? Play Video
    How ToVideos
    ATV/UTVPerformanceProduct Highlights

    The Best Performing ATV & UTV Oil?

  • How Does a Turbocharger or Supercharger Work?
    Ask AMSOILDieselCars & Trucks

    How Does a Turbocharger or Supercharger Work?

  • Does Synthetic Oil Cause Leaks?
    Ask AMSOIL

    Does Synthetic Oil Cause Leaks?

  • Two-Stroke vs. Four-Stroke Differences?
    How To
    ATV/UTVMarineMotorcyclesSnowmobileSmall EnginesDirt Bike

    Two-Stroke vs. Four-Stroke Differences?

    Two-stroke and four-stroke engines each have pros and cons.
  • Why is My Engine Overheating?
    NewsHow To
    Cars & TrucksDieselAsk AMSOIL

    Why is My Engine Overheating?

    If your car or truck is overheating, pull over and let it cool before checking the coolant.
  • What Motor Oil is Right for Your Boat or Personal Watercraft Engine?
    How To
    Marine

    What Motor Oil is Right for Your Boat or Personal Watercraft Engine?

    Dedicated marine motor oil is vital to marine engine protection.
  • Upgrade to AMSOIL Laconia Motorcycle Week
    Events
    Motorcycle RalliesMotorcycles

    Upgrade to AMSOIL Laconia Motorcycle Week

    AMSOIL is the Official Oil of Laconia Motorcycle Week.

    • What Does Oil Viscosity Mean

    Oil viscosity is the measure of its resistance to flow. How quickly or slowly motor oil flows affects how well it protects your engine.

    Learn More

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