Honda 3.5 L V6 have major problem with oil consumption with VCM, Variable Cylinder Management Deactivation system. First Two times, when I did my own oil change, only about 3.5 qt was recovered from the drain. When there should be at least 4.5 qts Took it to Honda dealer (Galpin Honda, Mission Hills) and told me that that is not considered as Excessive oil burning. Since then, around 50% life oil life remain sign shows on the dash board, I just simply add about 1 QT of engine oil. around 70k miles, during the cold start, engine stated to making annoying knocking noise. and went about after few minutes, Since I had Honda Care extended warranty, took it go Galpin Honda and was told that Timing Belt Tensioner was broken and they had replaced it. (around $100 K Miles) I was recommended to get the Valve adjustment done, because, there were residual knocking noise from the engine camshaft. I declined the Valve Adjustment, because, I wanted to get it done when I get my timing belt replaced.

Now, I am at 112k miles, when I went to get my timing belt replaced by local independent mechanic, that I have been using for few years. I asked him to do the valve adjustment. He called me and told me that there are few places on the Camshaft that excessive wear on the Camshaft and he could not do the valve adjustment. He also told me that is very common issues with these 3.5L engines, on the Odysseys and Pilots.

I am so angry at the Honda Dealer, because, the could not identify the Camshaft issue, only trying to make extra $$ recommending that I should get valve adjustment. and now that my Honda Care Warranty is over by 5k miles, they are not willing to even try to get this covered. I am going to call Honda and talk to them to cover the repair.

I have been with Honda since I bought my first car, which was a Honda Jazz in 2005. As the family got bigger, I bought this Honda Odyssey in 2009. Since day one, I continued to get the car serviced only in the official Honda service center and paid comparatively expensive service fees, just to make sure that I didn't compromise on the quality of service. In the end when it matters, I was simply dumped by Honda.

One fine day out of nowhere the engine starting misfiring and the car started to tremble like anything. I stopped the car and the recovery guys helped me bring it to Honda service center, and this is where the disappointment started. The service manager doesn't have any answer as to why this happened, but one thing he was very clear about is that the engine has to be replaced and I have to pay for it and that was it.

Despite all my pleas, nothing worked. Honda never accepted the responsibility that it was an internal engine issue and not of my mistake. The piston got stuck and damaged the inner engine block. The cost to replace the engine was so high, that I simply took the car out of service center and it is just sitting as junk. I will never ever again go for any Honda car in the future, and this pains me as I was a really devoted fan of Honda cars, but they simply dumped me.