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EPA MPG vs real world MPG clarified

Old 05-17-2019, 05:30 AM
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I had a low mileage at the time 86 Taurus and it started losing power and MPG. I had bought it new and maintained it by the factory service schedule. I did change the plugs changed the body mounted fuel filter and inline filters, added injector cleaner, and that helped a little, but then I went to one of the oil change places and had them do a sophisticated injector cleaning, that really made a difference. Today I don't know that it would work as well, but adding injector cleaner to the gas works poorly.
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Old 05-17-2019, 12:27 PM
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Thanks for the response Pandaz3! I have stepped up to trying some Royal Purple injector cleaner. Just waiting to get my tank down to about 13-14 gals., dump it in followed by a few gals. and see what happens. Because I have the 36 gal. tank. Due to the low mileage on the truck (37,000) it seems ridiculous that I should be having to deal with this so soon. But I'm willing to try anything Because the service Mgr. is a friend, he said I could bring it in and they would test the throttle body and not charge me any time on the clock for it. But other than that, I would have to put it in and start the clock running for labor to try and find this.
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Old 05-20-2019, 07:04 PM
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Default 2018 F-150 XLT 2.7 w/ 3.15 gears

In thirteen months I've driven my 2WD F-150 35K miles with a estimated ratio of 70% highway driving on flat land covering Houston and Austin. My best fuel economy was 28 and poorest was 19.

I've discovered many variables; wind and speed are the biggest factors as I don't tow and carry a couple hundred pounds of literature for a pharmaceutical sales territory. I do have a BakFlip (sp) cover and the truck is pure stock. A strong headwind can take 2-3 mph away from me, and I wonder if I had the 3.55 what the sacrifice would have meant. It's more quiet on the road than my 2016 Acura RDX, is a blast to drive and I can cover 400 miles in a day with little fatigue at age 60.

My favorite additions for appearance are the Ford spec wheel well liners and WeatherTech mats. The nifty add is the rear seat release that free'd up more storage.

How often do you guys suggest injector cleaner and what do you use?

Enjoy the forum!

Last edited by lee.usry; 05-20-2019 at 07:06 PM.
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Old 05-20-2019, 08:58 PM
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If you use Top Tier gas, you wont ever need injector cleaner. I have pretty much stuck to BP or Mobil for fuel and get great gas mileage and a smooth running engine. Plugs are more likely to be an issue at 30K than dirty injectors.
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Old 05-22-2019, 01:18 PM
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I've had my 2010 supercrew 4x4 for about 3yrs and can't get any better then 12.5mpg. Any advice?
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