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Old 06-03-2009, 11:47 AM   #1
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Zmax to use or not to use???

Just wondering has anyone used Zmax and noticed any diference? What do you guys thinks?

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Old 06-03-2009, 12:26 PM   #2
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It is snake oil. First, I don't believe in using 99% of the additives out there as most are nothing more or little more than snake oil. Second, the FTC has sued Zmax for their "false and misleading advertising" because it doesn't do anything even close to what it claims to do. Click on FTC Sues Speedway Motorsports and Oil-Chem Subsidiary for the details.

Leave it on the store shelves and use the $$$ you would have spent for it for something worthwhile.


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Old 06-03-2009, 12:45 PM   #3
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it is snake oil. First, i don't believe in using 99% of the additives out there as most are nothing more or little more than snake oil. Second, the ftc has sued zmax for their "false and misleading advertising" because it doesn't do anything even close to what it claims to do. Click on ftc sues speedway motorsports and oil-chem subsidiary for the details.

Leave it on the store shelves and use the $$$ you would have spent for it for something worthwhile.


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Old 06-03-2009, 01:26 PM   #4
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Thank You what oil would you say to use on an engine at 150000 miles?
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Old 06-03-2009, 02:36 PM   #5
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10W-30 for your non-Winter times, 5W-30 when it gets cold during the Winter there in Colorado. Valvoline, Havoline, Mobil, Pennzoil, etc. are all very good brands. I personally use Valvoline but that's not to say the other brands are not every bit as good. When it is extremely cold, a synthetic 5W-30 is a good idea. The rest of the year, a less expensive non-synthetic 10W-30 will do an outstanding job of protecting your engine providing you change it and your filter on schedule.

About the only brand of anything oil and filter related I would recommend against using are Fram oil filters. They have become poorly manufactured junk IMHO since being acquired by Allied Signal years ago. What are good oil filters? Wix, AC-Delco Duraguard, Purolator PureOne are ones that come to mind that sell for reasonable prices.
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Old 06-03-2009, 03:23 PM   #6
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Cool thanks for your input Jerry ive been using Valvoline so far ill just stick with that far now.
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Old 06-03-2009, 03:32 PM   #7
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use the $$$ you would have spent for it for something worthwhile.

like a trip to the liquor store !
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Old 06-04-2009, 08:21 AM   #8
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Agreed with all of the above. Restore, Zmax, Slick 50, etc. are all a complete waste of $. There simply is no good alternative to proper PREVENTATIVE maintenance. Take care of it day-to-day, use quality filters (NO FRAM!), decent oil (synthetic, even better), and keep up with the changes, don't neglect broken/mis-reading sensors, don't beat the piss out of it, and give it decent fuel, and you'll get max life out of your engine. When it's time to rebuild, there's no alternative to a proper rebuild, period. And it sure as hell doesn't come from a bottle Mark W.
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Old 06-04-2009, 09:22 AM   #9
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purolator filters and mobil or rotella are the only things i run in all my vehciles includeing my bikes
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Old 06-05-2009, 03:02 PM   #10
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One more question what brand or type of spark plugs do you guys suggest? had my jeep for almost a year and the person i got it from said they just did a turn up but i going to do one now.
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Old 06-05-2009, 05:44 PM   #11
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One more question what brand or type of spark plugs do you guys suggest? had my jeep for almost a year and the person i got it from said they just did a turn up but i going to do one now.
If your engine is older and has a distributor, I'd go for the Autolite AP985. If it's a newer TJ without a distributor, I'd go for the Autolite APP985 or Champion 7034. Those are all platinum coated and will outlast conventional spark plugs by 3X. The newer distributorless engines are fussier about their plugs than the older engines so be wary on what you get.
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Old 06-08-2009, 07:55 AM   #12
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thanks agian Jerry i got a lot of reading up to do on jeeps.
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Old 06-08-2009, 10:32 AM   #13
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I really don't understand why people want to use additives. If you buy a good quality oil, you are good to go. I have seen more people do damage with additives. Just a few weeks ago my Dad's friend decide to run Royal Purple in his Harley, it has developed a knock now. I remember reading a long time ago that as rule of thumb is you don't run synthetic oil from right after break-in that it is just a waste of cash. Is this still true?
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Old 06-08-2009, 12:35 PM   #14
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like a trip to the liquor store !
hell yeah!!
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Old 06-08-2009, 04:33 PM   #15
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I really don't understand why people want to use additives. If you buy a good quality oil, you are good to go. I have seen more people do damage with additives. Just a few weeks ago my Dad's friend decide to run Royal Purple in his Harley, it has developed a knock now. I remember reading a long time ago that as rule of thumb is you don't run synthetic oil from right after break-in that it is just a waste of cash. Is this still true?
Never was true, never will be. You can switch anytime. Now, I will always run mineral oil for break-in, then after 500-1000 miles, switch to Mobil 1 and run nothing but for the life of the vehicle. Swapping is only a waste of $ if you're getting rid of the vehicle ASAP Mark W.
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Old 06-09-2009, 10:09 AM   #16
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What about adding in fuel booster?
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Old 06-09-2009, 10:15 AM   #17
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Same deal- the octane boosters add MAYBE 0.2 points per bottle- worthless. Get race fuel if you need it!
As for cleaners, don't bother. If a car's been sitting a while (more than 6 months), I throw it a can of Seafoam and a tank of 93 octane, and beat on it a while- Mark W.
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Old 06-09-2009, 10:18 AM   #18
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If a car's been sitting a while (more than 6 months), I throw it a can of Seafoam and a tank of 93 octane, and beat on it a while- Mark W.
The Seafoam might help a bit but the 93 octane gas didn't do a thing towards cleaning up anything or helping it to run any better at all. High octane fuel helping with that is nothing more than an old wive's tale.
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Old 06-10-2009, 09:26 AM   #19
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If it's been sitting a while, the fuel in the tank has broken down to a lower octane than it was from the pump. I throw in the 93 to balance that out- hopefully ending up somewhere in the middle It's not for extra cleaners or anything- I've learned that that's a myth Mark W.

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