I was told from a few different people that changing the Spark Plugs and Air Filter on my '03 Toyota Rav-4 would significantly raise the gas mileage. I'm getting around 22 MPG, and I'm pretty sure that I should be getting more. Is this true?
Changing Air filter and Plugs raise gas mileage?
I can鈥檛 say for sure that it would significantly raise your gas mileage but it will definitely improve what you have, but only by a fraction. You are not going to see gains of three MPG, but you might see one or two if your filter was pretty dirty.
Good luck
B
Changing Air filter and Plugs raise gas mileage?
They would ONLY raise the gas mileage IF they were old and worn. If you have NEVER changed the air filter or you live in dusty area (like farm area), they changing the air filter would very much help.
As for the spark plug, newer cars often use Platinum or Iridium plugs that last up to 100K miles. So your spark plug might not need changing.
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Every time gas prices goes up, local stations do a story on gas mileage. Recently they test how much new air filters, plugs, proper tire pressure, clean trunk, etc. all helps. It turns out they all ADD up to only few MPG. It turns out that the BIGGEST difference is from driving habit change.
Jack rabbit starts (quick accelerations) are the worst, and driving on cruise controls are the best. They can improve your gas miles as much few MPG to 10 MPG (or more) improvement (depending on the weight of the car).
Good Luck.
Not only replace the plugs and air filter, but replace the plug wires as well. Keep the oil changes inside of 3K miles and remove any and all excess weight (junk in the trunk) from it.
Oh, check your tire air pressure and tire wear. Also keep your foot out of it. Drive smoothly, don't accelerate hard and start to slow for stops waaaaay ahead of time.
And... yes you can see as much as three mpg improvement.
Well, it depends if the air filter and plugs were worn out and old... Better change the air filter, spark plugs and wires, and drive smoothly. You can see that there's an improvement in gas mileage.
Your driving style adds to your fuel economy too you know. Check out my source below to see what you can do and see if your doing it right for better MPGs on your vehicle.
