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Fuel economy much improved after tune up

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Old 06-13-08, 07:26 PM
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Mason
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Default Fuel economy much improved after tune up

I had new plugs put in at the local Toyota garage yesterday. As soon as I picked it up I reset the info button. Prior to the tune up, with about 200 miles of mixed driving of about 75% city 25% highway, it read 21.5 mpg.

After one day of city driving, only about 20 miles so far I am averaging 26.1 mpg. It was mostly in low traffic, not a lot of traffic lights, but it was encouraging nonetheless. I'm certain it will come down some over time, but still seems good.

The biggest thing I noticed with the new plugs besides the fuel economy increase is the low rpm power increase. Before it was literally 'dead' at low rpm. Now it will cruise and maintain speed at very low rpm.

If anyone is wondering how it's possible to get 26mpg in the city, you might consider me a 'hypermilage guy'. When my girlfriend drives it she brings my average way down below 20mpg. She doesn't get the concept of coasting to traffic lights that you have to stop at anyway, and allowing the car to begin momentum before accelerating.
Old 06-13-08, 10:18 PM
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Lexmex
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Originally Posted by Mason
I had new plugs put in at the local Toyota garage yesterday. As soon as I picked it up I reset the info button. Prior to the tune up, with about 200 miles of mixed driving of about 75% city 25% highway, it read 21.5 mpg.

After one day of city driving, only about 20 miles so far I am averaging 26.1 mpg. It was mostly in low traffic, not a lot of traffic lights, but it was encouraging nonetheless. I'm certain it will come down some over time, but still seems good.

The biggest thing I noticed with the new plugs besides the fuel economy increase is the low rpm power increase. Before it was literally 'dead' at low rpm. Now it will cruise and maintain speed at very low rpm.

If anyone is wondering how it's possible to get 26mpg in the city, you might consider me a 'hypermilage guy'. When my girlfriend drives it she brings my average way down below 20mpg. She doesn't get the concept of coasting to traffic lights that you have to stop at anyway, and allowing the car to begin momentum before accelerating.
Your last paragraph says it all, but I like to floor the gas and take off.
Old 06-14-08, 04:14 AM
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AlexusAnja
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Default Coasting?

Originally Posted by Mason
She doesn't get the concept of coasting to traffic lights that you have to stop at anyway, and allowing the car to begin momentum before accelerating.
So you're the guy I'm always behind and having to honk at when the light turns green and you're gaining "momentum" ... ha ha. Maybe in NC that works, but you "coast" or "gain" anything here in NY and you'll either get cut off, or honked all the way up to 30 mph.

Anyway, continue the good mpg, wish I could get mine above 19.
Old 06-14-08, 08:49 AM
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carguy07
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How many miles were on the old plugs?
Old 06-14-08, 08:57 AM
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Mason
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Originally Posted by carguy07
How many miles were on the old plugs?
114k miles. I should have asked for them. I'd like to have seen the condition.
Old 06-16-08, 06:39 AM
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lexus114
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Originally Posted by Mason
114k miles. I should have asked for them. I'd like to have seen the condition.
They were probably in good shape.
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