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  • second tank

    I would like to add a tank to my Honda (when I get it) I assume if I do it I void the warranty. Is there a chance Honda will make it a dealer option so we can keep warranty?

  • #2
    Re: second tank

    No chance of either a larger tank, or an auxilliary tank coming from Honda. The aux tank may void the warranty on any part specifically affected by the modification, but the tank installer should step in and provide protection for any work or mods performed by them. If not, don't deal with them. The vehicle warranty would cover such items for 3/36 and aftermarker parts would only have a one year parts warranty (generally). Have them give you something (in writing) to the effect that they will step in and protect you for any voided warranty issues caused by their modifications. If they are competent and responsible, they should have no problem with this. The problem may arise if a dealer claims that the mods negate warranty protection for parts outside the scope of the changes, ie a pressure regulator, injector, etc. If you are in Ca, many of the cng parts that are listed under the PZEV Ca warranty extension will be covered for 15 yrs/ 150,000 mi. Just understand, no Honda has never been keen on the idea of Aux tanks. I'm not sure why, but they seem to react to the subject as if it were a safety issue.
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    • #3
      Re: second tank

      Do you know of others who have done it?

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      • #4
        Re: second tank

        Personally, no. But contact Murphy at cngmotors.com. He does these regularly for his used car customers. He can fill you in on all the details.
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        • #5
          Re: second tank

          There are too many variables involved in the manufacturer of a vehicle for an OEM to accept responsibility for the addition of an auxillory tank. Just a few items to take into consideration are vehicle handling, increased braking capacity, uneven weight distribution, negative affects on crush zones, decreased cargo capacity (GVWR), decreased GCVWR (combined towing), incorrect installation, collision that could increase the tendancy to greater secondary damage, etc.... All of these issues can be addressed by a knowledgable CNG mechanic, so please do not think that tank addition is impossible. It is probably best to wait until the factory warranty expires, but SEMA has already addressed the affects of aftermarket components on factory warranties. SHAME on (most) OEMs for not creating this option as an add on. Cudos to FORD Motor CO for offering this as an option on the Crown Vic. It definately goes a long way having the OEMs design this option as it may require different spring and shock valve rates, and multiple vehicle crash data reports. It seems to me that tank addition cost will probably rise exponentially in relation to the decreasing GVWR of the vehicle in question. Happy Hunting!

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          • #6
            Re: second tank

            Not to be negative about a decision that is yours to make, but after having a rear-end collision total my first GX in May, I lost my interest in having an second tank put into a GX. Had a fairly minor difference in speed with an Explorer and the damage went all the way to the frame around the tank.
            Another tank in the trunk would have been a problem.

            The bumper is too low to protect against any SUV.

            Originally posted by bakaroma View Post
            I would like to add a tank to my Honda (when I get it) I assume if I do it I void the warranty. Is there a chance Honda will make it a dealer option so we can keep warranty?

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            • #7
              Re: second tank

              Originally posted by tomherbst View Post
              Not to be negative about a decision that is yours to make, but after having a rear-end collision total my first GX in May, I lost my interest in having an second tank put into a GX. Had a fairly minor difference in speed with an Explorer and the damage went all the way to the frame around the tank.
              Another tank in the trunk would have been a problem.

              The bumper is too low to protect against any SUV.
              tomherbst,

              Do you have pictures of the damage to your Civic? That would be a great thing to show people.
              Jared.
              Mountain Green, Utah
              2003 CNG Cavalier
              2003 CNG Silverado 2500HD

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