How do you get better mileage out of your classic car?

Classic cars can use more gas than modern vehicles, but regular maintenance, smart upgrades, and smoother driving habits can help improve gas mileage. This article shares practical ways to save on gas while protecting the value and enjoyment of your collector vehicle.

Keep up with regular maintenance

A well-maintained engine runs more efficiently, which can help reduce fuel consumption and keep your car in better condition over time. Follow the maintenance schedule recommended for your specific make and model, and work with a trusted mechanic who understands collector vehicles.

Start with the basics: clean or replace spark plugs, oxygen sensors, air filters and fuel filters as needed. It’s also a good idea to inspect the suspension, check the wheel alignment and change fluids on schedule, including oil, transmission fluid, power steering fluid, brake fluid, differential fluid and coolant.

Consider engine improvements

Older, worn or inefficient parts can make your engine work harder than it needs to. Replacing select components with modern, compatible parts may help improve both fuel economy and performance. Depending on your comfort level, you may be able to handle some updates yourself, but larger engine work is best left to a professional who has experience with classic cars.

Look into an overdrive transmission

If you spend time driving at highway speeds, an overdrive transmission may help lower your car’s revolutions per minute (RPM), which can reduce fuel use and engine strain. This type of upgrade may not be right for every collector vehicle, so speak with a qualified specialist before making changes to your drivetrain.

Review your fuel system

For some classic cars, upgrading from a traditional carburetor to a fuel injection system can help improve fuel efficiency, smoother idling and overall performance. If preserving originality is important to you, talk through your options with a classic car professional before deciding what’s best for your vehicle.

Think about suspension and aerodynamics

Your car’s ride height and suspension can affect how it moves through the air. In some cases, lowering the suspension may help improve aerodynamics and reduce drag. However, any suspension changes should be done carefully to protect your car’s handling, safety and value.

Use the right fuel

The right fuel can help your engine run smoothly and may help reduce knocking or carbon buildup. Check your owner’s manual or ask a trusted mechanic which fuel grade is best for your vehicle. You can also consider using a fuel additive when appropriate and replacing a loose or worn gas cap to help reduce evaporation. Review this article to help ensure you're choosing the right fuel for your collector car every time you fill up.

Check tire pressure and alignment

Underinflated or misaligned tires can make your engine work harder and use more fuel. Keeping your tires properly inflated and aligned can help improve fuel economy, extend tire life and support a smoother ride. If possible, narrow tires may also help reduce rolling resistance.

Lighten your load

Extra weight means your engine has to work harder. Remove unnecessary items from your trunk or cabin and carry only what you need for the drive, such as emergency supplies, basic tools and important documents.

Adjust your driving habits

How you drive can make a big difference. Fast acceleration, hard braking, frequent idling and aggressive driving can all waste gas. Instead, accelerate gradually, brake gently, maintain a steady speed and turn off your car when you’re parked and waiting.

Drive it regularly

Classic cars benefit from being driven. Regular use allows fluids to circulate and helps keep components moving as they should. If your car has been sitting for a while, take the time to inspect it before heading out.

Keep the engine clean

Dirt and grime can trap heat around engine components and may make maintenance more difficult. Keeping your engine bay clean can help you spot leaks, worn parts or other issues before they become bigger problems. Use care when cleaning around electrical components or ask a professional for help.

Small changes can add up when it comes to improving fuel efficiency in your classic car. From routine maintenance to thoughtful upgrades and smoother driving habits, taking care of your collector vehicle can help you get more enjoyment out of every drive. 

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