Highest Rated Review by the Community
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Rated a Very Helpful Review by the Epinions community Sep 10, 2003
Pros: Simple to use.
Cons: Didn't work, Price.
Summary: After watching all those zMAX infomercials and hearing so many good things about this product I decided to give the zMAX Power System a try. I purchased zMAX in hopes that it would increase fuel economy, restore lost performance, and help extend my ... read more
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Rated a Somewhat Helpful Review by the Epinions community
Nov 2, 2012
Pros: Saved my buddy's motorcycle engine!
Cons: A bit pricey...but actually works vs. the other "additives" that do NOT work!
Summary: OK...my friend has an '88 Vulcan and was having some operational "issues" so I recommended he add Zmax because I have had good experience with the product ('82 280ZX, '84 Camaro Z28, '72 Camaro, '97 Toyota Tacoma, '89 Yamaha Virago 700, '95 Virago 1100, ... read more
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Not Yet Rated by the Epinions community
Jul 19, 2011
Pros: Worked for cleaning my engine.
Cons: Used after there was too much sludge buildup. Recommend for newer vehicles to prevent sludge.
Summary: I bought the Zmax micro lubricant for my newly purchased 2003 VW Jetta 1.8T with 103000 miles on the odometer. I noticed after purchasing the vehicle that the engine was running a little rough at idle. So, I decided to give Zmax a try and added the fuel ... read more
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Not Yet Rated by the Epinions community
Apr 18, 2011
Pros: Super Great product! Love how fast it worked!
Cons: Well maybe the price, but from what I seen it do, well worth it!
Summary: I have a 91 JDM Honda SIR Conversion Civic with over 200 thousand miles on her. Now I take extreme measure to take care of my cars, Oils changes, Tune ups...the works. But for some odd ball reason... I had placed her in storage for about a good 6 years ... read more
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Rated a Somewhat Helpful Review by the Epinions community
Mar 2, 2010
Pros: Easy-peasy to use.
Cons: It is sort of expensive, bit it really works well.
Summary: I had a young man mow my lawn for me while on vacation. He was not very experienced, and filled the push mower's oil sump with gasoline. The engine lasted for the duration of his mowing, however it siezed up while I was mowing the next week. I had ... read more
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Rated a Somewhat Helpful Review by the Epinions community
Sep 6, 2009
Pros: I highly recommend using Z-Max products
Cons: I think the price is too high.
Summary: I had thought about using Z-Max for a long time but the price was keeping me from doing it, I just thought it was too much. About my truck it is a 2001 Silverado 4X4 (Z71) with tow package. 5.3 engine auto transmission I bought New in Aug of ... read more
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Rated a Somewhat Helpful Review by the Epinions community
Mar 13, 2008
Pros: Additives are junk.If you don't believe me read about it at the FTC's website.
Cons: Everything this stuff won't work
Summary: All additives are junk. If you don't believe me read about it at the FTC's website. http://www.ftc.gov/opa/2001/02
/zmax1.shtm
According to the FTC, the CRC L38 test is a standard auto industry tool to measure the bearing corrosion protection ... read more
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Not Yet Rated by the Epinions community
Oct 31, 2006
Pros: Better engine response, smoother transmission shifting, better MPG than factory specs
Cons: Maybe a bit Pricey, OK very pricey, but you get what u pay for
Summary: How come everyone is saying that this doesnt work? First of all, if they are using the product and drive it for 30 miles and found no difference, they are idiots especially since their success didnt work on their crappy american cars. I have a 1996 ... read more
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Rated a Somewhat Helpful Review by the Epinions community
Sep 27, 2006
Pros: Delivers what they say
Cons: Price is a little high & Doesn't do as much for new cars
Summary: The FTC got zMax two ways. The first was if you use it in a new car you won't get the percent of increase that they claimed. The second was in the corrosion test, they only tested the product alone. zMax is meant to be added to motor oil so the results ... read more
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Rated a Helpful Review by the Epinions community
Aug 9, 2005
Pros: great bike chain lube, smoother engine idle. slight MPG improvement
Cons: Expensive. Will not work well with all cars. absurd commercial claims.
Summary: After reading the 8 reviews here I got to throw my fire into the oil. So to speak. I have had 2 cars run with Zmax, a Dodge Neon of'01 vintage and a Chrysler 300m 2003. I too was very wary of these smoke oil sam scams. Well, I be damn if my mileage ... read more
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Rated a Very Helpful Review by the Epinions community
Mar 24, 2005
Pros: Keeps the valve clean, makes things quiet and smooth, improves gas mileage. Pays for itself?
Cons: Not cheap, an expensive hassle to meet all requirements for the 150,000 guarantee.
Summary: I'm as skeptical as anybody. I've tried and rejected many "miracle" products for different uses, occasionally finding one that really worked as claimed. One or two of these products are now invaluable to me, among dozens that were a waste of time and ... read more
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Rated a Very Helpful Review by the Epinions community
Jan 23, 2005
Pros: Nothing positive to note.
Cons: Falsified claims for increased engine performance, temperature, fuel economy and reliability.
Summary: zMax is available at most automotive parts retailers in Canada and United States and is also available online. zMax products are available separately or they can be purchased in a zMax Power System which includes a fuel treatment, engine oil treatment ... read more
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Rated a Helpful Review by the Epinions community
Oct 3, 2004
Pros: Does what it claims, easy to find and install.
Cons: Pricey, but it's the only do-it-yourself engine treatment I've seen results from.
Summary: Why I tried it... It all started back in 1999, when I drove a '92 Mazda MX-3 with 125,000 miles on it. One day the timing belt broke on the highway and the car was never the same again. I had lost compression in one cylinder and without expensive ... read more
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Rated a Helpful Review by the Epinions community
Dec 16, 2003
Pros: Cost effective, gas savings probably covered my cost of Z-Max, easy to use
Cons: More expensive engine treatments ($30) and you are supposed to re-treat every 6 months
Summary: I was skeptical that any "wonder additive" would make any significant change to my cars fuel economy, performance, running temp, etc. I own a 1983 Toyota Celica which had about 255,000 miles on it when I decided to try Z-Max. While the fuel economy was ... read more
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Rated a Somewhat Helpful Review by the Epinions community
Jul 27, 2003
Pros: The Infomercial and advertising seemed to catch my attention.
Cons: I read the FTC lawsuit against the makers of this product.
Summary: I thought this to be an amazing product and was taken in by the advertising and infomercials, not to ... read more
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Rated a Helpful Review by the Epinions community
Jun 15, 2003
Pros: This stuff seemed to work
Cons: I wish it were a one time installation
Summary: Ok here is some real world testing. I own a 95 Oldsmobile cutlass supreme with a 3.1 liter v-6. For ... read more
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- Express Reviews
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Not rated yet by the Epinions community Jun 30, 2012
Pros: nice bottles
Cons: cost and mileage lies
Summary: Carol Shelbey lied! I tried it and my gas mileage dropped. I watch my gas mileage closely and wanted to increase it . I was getting 31.1 mpg but after using zMax it dropped to
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Rated Show by the Epinions community Nov 24, 2011
Pros: NONE, not at all, would not recommend to any one........ pass this up
Cons: $25.00 for the engine treatment, and now $45.00 for an oil sending unit.
Summary: Worse $25.00 I have ever spent. Messed up my Oil Sending Unit on my car, Zmax company says no way. I say yes way..... it was the only thing I did different to my car and with 100 miles it messed up my oil
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Rated Show by the Epinions community Sep 22, 2011
Pros: It extended the life of all my motors past 150,000+ miles
Cons: Need a price break on buying a case. Little pricey
Summary: I started using Zmax oil and gas additive 6 cars ago and am still using it in my newest. 1995 Jeep GC I6, 1998 Jeep GC I6, 2003 Liberty V6, 2006 Jeep GC 4.7V8, 2011 Liberty V6 and my 1955 Chevy Belair 350V8. I tried a couple of different additives
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Rated Show by the Epinions community Oct 16, 2010
Pros: Not known to cause AIDS.
Cons: Does nothing, yet costs money.
Summary: My friend tried this in his Mustang several years ago. Result: absolutely no change in mileage or performance. It did lighten his wallet a bit, though, so maybe that helped.I see it is being advertised on ESPN again. I
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