Anyone use Zmax?
Thread Starter
Le Mans Master
Joined: Nov 2008
Posts: 5,119
Likes: 12
From: Paintsville,ky
Anyone use Zmax?
I was wondering if anyone has used Zmax and does it really work? I thought about trying it but want to hear some input from others that have used it. Thanks, John.
Safety Car
Joined: Jan 2004
Posts: 3,783
Likes: 15
From: Northern California
I used Z-Max about 7 years ago and didn't notice a difference in anything. Z-max requires that you use it on a regular basis (which I didn't), it's not a one time treatment.
I paid about $34 for the kit (fuel, oil and transmission treatment) and about 6 months after I bought it, I received a letter from an attorney representing customers who have purchased Z-Max. The letter stated that Z-Max had made false or exaggerated claims in their advertising.
Months later, I received a check for $34 from the Z-Max corporation.
I now see that Carroll Shelby endorses Z-Max, maybe they changed the formula?
I paid about $34 for the kit (fuel, oil and transmission treatment) and about 6 months after I bought it, I received a letter from an attorney representing customers who have purchased Z-Max. The letter stated that Z-Max had made false or exaggerated claims in their advertising.
Months later, I received a check for $34 from the Z-Max corporation.
I now see that Carroll Shelby endorses Z-Max, maybe they changed the formula?
Safety Car
Joined: Jul 1999
Posts: 3,946
Likes: 63
From: Marianna FL
I used it in an old Jeep Wagoneer. It did a very good job of cleaning the inside of the engine. Unfortunately it either dislodged enough crap or cleaned enough of the carbon out of the oil pump that I lost a significant amount of oil pressure. The gears were not damaged, but the housing was quite scored up. Clean as a whistle though...
Burning Brakes
Joined: Jan 2003
Posts: 755
Likes: 32
From: Roswell Georgia
Formula Didn't Change - Just The Claims
Zmax got into trouble with the FTC over the exaggerated claims made for the Zmax treatment system. (Use this link to read the FTC's side of the story: http://www.ftc.gov/opa/2001/02/zmax1.shtm.)
Zmax then spent the money to document the current claims to win FTC approval. (Use this link to read Zmax's side of the story: http://www.zmax.com/our_company/ceo/.)
Personally, I started using Oil Extreme concentrate in both my '89's after reading David Vizard's article in 2001. I was looking for increased power (both HP and torque), but gas mileage increased also so I wasn't disappointed. (Use this link to read David's article: http://www.oilextreme.com/motortec_article.html.)
YMMV, but I'm very happy with Oil Extreme concentrate.
Zmax then spent the money to document the current claims to win FTC approval. (Use this link to read Zmax's side of the story: http://www.zmax.com/our_company/ceo/.)
Personally, I started using Oil Extreme concentrate in both my '89's after reading David Vizard's article in 2001. I was looking for increased power (both HP and torque), but gas mileage increased also so I wasn't disappointed. (Use this link to read David's article: http://www.oilextreme.com/motortec_article.html.)
YMMV, but I'm very happy with Oil Extreme concentrate.
