Improve your vehicle's MPG


If you want to improve your gas mileage there are lots of things you can do.  (updated as of 5/1/12)

1.  Keep the outside of your car clean. The more dust, grime, & dirt you have on your vehicle, the more wind resistance or wind-drag your vehicle has. This makes your vehicle worked just a little harder to move.

2.  Put highway tires on your vehicle. These will make your travel easier & smoother. And you will use less gas to rotate the tires because they are not as clunky or heavy as say alterrain or off-road tires.

I replaced my off-road M/T tires with highway tires I increased my MPG by about 5%.

3.  Consolidate your travel trips to make the moat efficient use of your time and gas. This saves you money. This has been widely publicized so I won't go into additional details.

4.  Add a high quality racing oil to vital parts of your vehicle.  I prefer Militec, it's a high quality racing oil that does the job prefectly.  It cost about $20 to $35 per bottle, but you'll save a lot of money in gas & maintenance coat because Militec prolongs the lifespan of everything it's added to. You'll double the length of time for you standard oils.

Add 8oz to your engine oil.
Add 4oz to your differental.
Add 2oz to your steering fluid.
Add 2oz to your radiator fluid.
Add 4oz to your transmission oil.

I added all these to my 2006 Toyota Tundra & got a 6% improvement in MPG.

5.  If you have a truck and don't need your truck bed open for useage all the time. Buy a tonneou cover or cabin hatch. It changes the air flow of your vehicle and decreases the drag overall. This should give you an extra 5% to 8% in you MPG. Some web site claim 11%, but that's not realistic.

6.  Don't punch the gas pedal. There is no need to zoom around if you're not getting anywhere fast. So many people push the car to go fast only to have to slam on the brakes a moment later. There's no need to push your RPMs above 2100 RPM with most day to day driving. By driving less agressively you save gas & put less wear & tear on your vehicle.

7.  I recently added a fuel organizer or fuel line magnet.  The product claims that aligning your fuel will produce more consistent fuel pressure.  I was skeptical and still remain so after several months of use.  I have noticed a slight change in horse-power, but I think it might be a physiological sensation attempting to justify the purchase.

8.  Get regular oil changes & service tune-ups.  My truck runs the best the first 3 months after an oil change, improving the MPG by 5%-10%.

9.  Low friction calipers on your vehicle can reduce the everyday wear and tear of your brake pads, but can produce a more sluggish braking system.  Be aware of the pro & cons of anytime you make an adjustment to your vehicle.

10.  Improve the air flow intake for your vehicle.  I replaced my stock air filter with a mass cold air filter that is California Smog Certified.  This way I get the improved air flow to the engine and I don't have to fiddle with changing the air intake when its time for a smog check.  It is a perfect hybrid of power and milage improvements because the engine breathes all the time.

11.  Ceramic bearings or low friction bearings for your wheel hub assembly can make a huge difference in your milage and longevity of you vehicle, but finding these exceeding rare aftermarket parts can take time to find and most vehicles do not have this as an option.  If you can find them from a reputable company you'll be happy you made the switch.  I heard claims of as much as 35 mpg improvement according to a materials engineer working on these products, but I think that is too large to be realistic.  I would expect more around 5% improvement.

12.  Get the extra weight out of your vehicle.  Any excess weight in your vehicle is a waste of fuel.  That extra weigh means your vehicle is heavier and therefore takes more energy to move the vehicle.  So in short you're paying money just to carry that stuff around with you.

13.  Roll up those windows!  If you are driving with the windows down; you're changing the air flow of your vehicle and consequently increasing the drag of the vehicle.  Your cab is big parachute, so roll up those windows!

14.  Turn of the cabin accessories & unneeded functions.  The more gadgets & options you have running the more electricity it takes to run them, so that's using more fuel to run those functions.  Just to be clear, that includes the bluetooth & charging your cell phone.  For the best milage leave off everything but the fan on the lowest setting and the FM stereo.  Say no to Air Conditioning & seat heaters for the best savings.  This might save you about 2 MPG or depending on what you have running.  It adds up.

Conclusion
In all I improved my vehicle, 2006 Toyota Tundra, from about 11 mpg to about 18 mpg for mixed city & highway driving. Thanks to my care & maintenance the wear & tear on is cut by 30% to 50%.

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