Does anyone really know if any of those engine treatments really work and if so which is best? STP, Slick 50, Zmax, Prolong, Motorup???? Some say they increase gas milage? Any input?

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2000 4.2 Long Bed White

 

You do NOT need to use any engine treatments of any kind in your 2000 F-150! In fact, the owners manual specifically says not to do it! Most newer vehicles made today don't need them. You are wasting your money!

All you need to do is change your oil AND filter on a regular basis and use a quality gasoline.

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2000 F-150 XLT, 4x2, 5.4L Supercab, Superchip, Styleside, Black with silver two-tone, 3.55 rear, class III towing package with heavy duty cooling package, 4 wheel disk ABS, overhead console, sliding rear window, keyless entry, dark graphite interior, in dash CD, factory leather wrapped steering wheel, Pendaliner bedliner, K&N air filter, rubberized undercoating, cabin filtration system, Bugflector II, 5W-30 Mobil 1, engine build 10/4/99

 

Don't waste your money. Just use a high quality gasoline, like Texaco.

 

Thanks for the info. I won't waist my money!

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2000 4.2 Long Bed White