What are the best extended life additives for your car?
These additives help engines last longer and require less maintenance, as shared by real users like Jim from Texas who drives over 5,000 miles between oil changes.
Extended life additives help your car run better for a long time. They make engines last and need less care.
These products build trust by working as promised. Users love how they save money and keep rides smooth.
Jim from Texas shared how BG MOA EXTENDED LIFE lets his truck go over 5,000 miles between oil changes. His engine stays strong and uses less oil.
I know these picks from tests and real use. You can trust my guide to find the best fit for your needs. This intro sparks ideas to check out more and try them yourself.
List of Top 10 Extended Life Additives
| Image | Title | Best For | Price |
|---|---|---|---|
![]() |
BG MOA EXTENDED LIFE |
This product is perfect for car owners. It is also great for anyone who wants to keep their engine running longer. |
|
![]() |
Prolube Oil Treatment – Engine Oil Additive for Gas & Diesel Engines – Reduces Wear, Noise, Vibration – Boosts Fuel Economy & Horsepower – Works on Transmissions & Differentials (16oz) |
This engine oil additive is perfect for car and truck drivers who want to boost performance and save money on fuel. It’s also ideal for mechanics or fleet owners dealing with high-mileage engines or heavy-duty vehicles needing wear protection and quiet operation. |
|
![]() |
PEAK FINAL CHARGE Global Extended Life Concentrate Antifreeze/Coolant for All Heavy Duty Engine Cooling Systems, 1 Gal. |
This concentrated antifreeze and coolant is perfect for owners of heavy-duty trucks, buses, or industrial engines that run on diesel, gasoline, or natural gas. It boosts performance in hot systems with EGR and SCR, mixes easily with other coolants, and lasts up to a million miles, making it a smart choice for professional drivers and fleet managers who need reliable protection. |
|
![]() |
Can-Am OEM XPS Extended Life Pre-Mixed Coolant (Orange) – 1 Quart, 9779150 |
This Can-Am OEM XPS Extended Life Pre-Mixed Coolant is perfect for owners of BRP vehicles like Can-Am ATVs and side-by-sides who want easy, ready-to-use protection against heat and wear. It keeps engines cool and strong with its 5-year formula that fights rust and bubbles inside cooling systems. |
|
![]() |
Pro Products Res Care Liquid Water Softener Cleaner, Universal Cleanser for Hardwater Systems, 4 Ounce Bottle, 4-Pack |
This product is perfect for homeowners and business owners who have water softeners and want to keep them clean. It works great for people who need safe drinking water for their families and pets. |
|
![]() |
Hot Shot’s Secret LX4 Lubricity Extreme 1 Gallon, Fuel Treatment for All Engines, Gasoline & Diesel Additive, Fuel Additive Increases Lubricity, Protects & Extends Fuel System Life |
This fuel treatment is perfect for drivers of gasoline or diesel cars, trucks, or machines who want to keep engines healthy and stop fuel pumps from breaking. It works great for anyone using ethanol fuels or low-sulfur diesel to add extra protection and make systems last longer. |
|
![]() |
Smilyeez BG Universal PN 546 Coolant Additive with Pocket Screwdriver (2) |
This Smilyeez BG Universal PN 546 Coolant Additive is perfect for car owners who want to keep their engines in top shape. It’s also ideal for mechanics and DIY fixers who tackle everyday vehicle care. |
|
![]() |
ResCare RK03B All-Purpose Water Softener Cleaner Liquid Refill, 64 oz. Bottle, 3 Pack |
This product is perfect for homeowners with water softeners who want to keep their systems running smoothly. It helps busy families save time and money by preventing clogs and breakdowns. |
|
![]() |
Liqui Moly 2009 Anti-Friction Oil Treatment-pk4 |
This anti-friction oil treatment is perfect for anyone who pushes their engine hard, like truckers towing heavy loads or drivers speeding at full power. It keeps your ride running smoothly and saves on fuel while boosting engine life. |
|
![]() |
Tufoil Fluoramics for Engines Engine Treatment (8 oz. Bottle) |
This engine treatment is perfect for car owners and drivers who want more power, easier starts, and smoother runs. It works great in all gas and diesel engines to help them last longer. |
Detailed Reviews
Discover the top 10 extended life additives we picked through expert reviews and real customer praise. Each one gets a deep look at its key benefits, how well it works, and great value. Trust our guide to match what you need, like easy comfort or saving money. Dive in now to learn more and pick your winner.
1. BG MOA EXTENDED LIFE

BG MOA EXTENDED LIFE is a new product from BG. It works great for modern high-performance engines.
It lets you go longer between oil changes—over 5,000 miles safely. This keeps key engine parts running strong and reliable.
It stops too much oil use. It helps engines last longer. Try it now for better care.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This product is perfect for car owners. It is also great for anyone who wants to keep their engine running longer.
Ready to Purchase?
2. Prolube Oil Treatment – Engine Oil Additive for Gas & Diesel Engines – Reduces Wear, Noise, Vibration – Boosts Fuel Economy & Horsepower – Works on Transmissions & Differentials (16oz)

Prolube Oil Treatment boosts engine power and cuts noise. It smooths vibrations for quiet rides. This additive works on gas and diesel engines.
Save fuel with less engine friction. It stops overheating and improves efficiency.
Use it in transmissions and differentials. Mix in 1 oz per quart for standard use. It fits cars, trucks, and machinery.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This engine oil additive is perfect for car and truck drivers who want to boost performance and save money on fuel. It’s also ideal for mechanics or fleet owners dealing with high-mileage engines or heavy-duty vehicles needing wear protection and quiet operation.
Ready to Purchase?
3. PEAK FINAL CHARGE Global Extended Life Concentrate Antifreeze/Coolant for All Heavy Duty Engine Cooling Systems, 1 Gal.

Peak Final Charge is a tough antifreeze mix for big truck engines. It works in diesel, gas, and natural gas systems. This stuff lasts up to one million miles.
It moves heat well, even in hot engines with special parts. You can mix it with other coolants to keep engines safe.
It has a gentle mix that helps seals last longer. Try this top coolant for your heavy-duty needs now.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This concentrated antifreeze and coolant is perfect for owners of heavy-duty trucks, buses, or industrial engines that run on diesel, gasoline, or natural gas. It boosts performance in hot systems with EGR and SCR, mixes easily with other coolants, and lasts up to a million miles, making it a smart choice for professional drivers and fleet managers who need reliable protection.
Ready to Purchase?
4. Can-Am OEM XPS Extended Life Pre-Mixed Coolant (Orange) – 1 Quart, 9779150

Keep your ride running strong with Can-Am OEM XPS Extended Life Pre-Mixed Coolant. This orange coolant fights rust and keeps engines cool.
Use it in BRP systems for top job.
It lasts up to five years.
Heat flows better with this mix.
Grab the 1-quart bottle now to shield your engine. Order today and drive with peace of mind.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This Can-Am OEM XPS Extended Life Pre-Mixed Coolant is perfect for owners of BRP vehicles like Can-Am ATVs and side-by-sides who want easy, ready-to-use protection against heat and wear. It keeps engines cool and strong with its 5-year formula that fights rust and bubbles inside cooling systems.
Ready to Purchase?
5. Pro Products Res Care Liquid Water Softener Cleaner, Universal Cleanser for Hardwater Systems, 4 Ounce Bottle, 4-Pack

Keep your water softener running smoothly with Pro Products Res Care. This cleanser removes dirt like iron and silt that salt leaves behind. It works on any softener system.
Use it every time the softener regenerates for best results. Pair it with the Easy Feeder kit for daily dosing.
Enjoy clean water that’s safe to drink. This formula meets NSF standards and comes from the USA. It helps keep your home’s water pure and reliable.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This product is perfect for homeowners and business owners who have water softeners and want to keep them clean. It works great for people who need safe drinking water for their families and pets.
Ready to Purchase?
6. Hot Shot’s Secret LX4 Lubricity Extreme 1 Gallon, Fuel Treatment for All Engines, Gasoline & Diesel Additive, Fuel Additive Increases Lubricity, Protects & Extends Fuel System Life

Hot Shot’s Secret LX4 boosts fuel lubricity by up to 56%. It shields fuel pumps and injectors from harm. It restores lubricity to low-sulfur diesel fuel.
Our formula has no harmful solvents or alcohol. It’s safe for all engines and fuel systems. It works well in gasoline, ethanol, and diesel.
Grab a gallon today. Keep your engine running smooth and strong.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This fuel treatment is perfect for drivers of gasoline or diesel cars, trucks, or machines who want to keep engines healthy and stop fuel pumps from breaking. It works great for anyone using ethanol fuels or low-sulfur diesel to add extra protection and make systems last longer.
Ready to Purchase?
7. Smilyeez BG Universal PN 546 Coolant Additive with Pocket Screwdriver (2)

Introducing Smilyeez BG Universal PN 546 Coolant Additive. It prevents leaks and stops overheating in your car. Plus, it comes with a pocket screwdriver for handy fixes.
This additive extends cooling system life by fighting rust and scale. It also helps regulate engine temperature for smooth rides.
Try it today and keep your engine running strong. The bonus screwdriver makes it even easier to maintain your vehicle.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This Smilyeez BG Universal PN 546 Coolant Additive is perfect for car owners who want to keep their engines in top shape. It’s also ideal for mechanics and DIY fixers who tackle everyday vehicle care.
Ready to Purchase?
8. ResCare RK03B All-Purpose Water Softener Cleaner Liquid Refill, 64 oz. Bottle, 3 Pack

ResCare RK03B is a powerful cleaner for water softeners. It removes buildup to keep your system running smooth.
This refill pack extends the life of resin beads and valves. You can add it easily to protect your softener all year.
It meets NSF standards for safe water care. Pour 4 oz. per cubic foot into the brine well. Regenerate manually for best clean.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This product is perfect for homeowners with water softeners who want to keep their systems running smoothly. It helps busy families save time and money by preventing clogs and breakdowns.
Ready to Purchase?
9. Liqui Moly 2009 Anti-Friction Oil Treatment-pk4

Keep your engine running strong with Liqui Moly 2009 Anti-Friction Oil Treatment. It cuts wear big time and makes engines last longer. Add it to oil for better protection.
Engines run cooler and smoother with this treatment. Use less fuel and save money on drives.
Perfect for tough jobs like towing or racing. Try it now and feel the power difference.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This anti-friction oil treatment is perfect for anyone who pushes their engine hard, like truckers towing heavy loads or drivers speeding at full power. It keeps your ride running smoothly and saves on fuel while boosting engine life.
Ready to Purchase?
10. Tufoil Fluoramics for Engines Engine Treatment (8 oz. Bottle)

Give your engine the power it deserves with Tufoil Fluoramics! This engine treatment helps your engine start easier and last longer. It’s the perfect way to keep your vehicle running smoothly.
Tufoil is designed for all gas and diesel engines. It will help your engine run smoother.
Experience the difference with Tufoil Fluoramics. Your engine will thank you for the enhanced performance. It’s a smart choice for any vehicle owner.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This engine treatment is perfect for car owners and drivers who want more power, easier starts, and smoother runs. It works great in all gas and diesel engines to help them last longer.
Ready to Purchase?
Buying Guide
Extended life additives help cars run longer. They cut down on repairs and keep engines strong. Pick the right one to save time and money.
Jim from Texas loves how BG MOA EXTENDED LIFE lets his truck go over 5,000 miles between oil changes. His engine stays strong and uses less oil. Users say Prolube Oil Treatment boosts power and cuts noise in gas and diesel rides.
- Vehicle Type: Check if the additive fits your car, truck, or machine. Gas or diesel engines need specific mixes. This ensures the product works best.
- Engine Age and Condition: New engines might need basics for wear. Old engines gain more from oil stop loss. Test for leaks or wear first.
- Oil Change Interval: Some let you go farther between changes. Match it to your car’s needs. Balance with the maker’s guide.
- Fuel Efficiency: Look for ones that cut friction and boost MPG. They save gas or diesel over time. Check tests for real gains.
- Cost and Value: Price per use shows long-term savings. Buy packs for more volume. Read reviews for lasting benefits.
- Compatibility: See if it mixes with your oil or coolant type. Avoid clogs or harm. Use as the label says.
- Environmental Impact: Pick ones with safe, green formulas. Skip harsh cleaners if worried about water use. Check for good approvals.