Since half of the motor shuts down does that mean one half it will get worn more? i.e plugs, wires, seals, bearings etc....??

 

I think it alternates between halves, but I could be wrong.

 

It isn't one bank and then another. It is like first on the left second on the right. Third on left and so on.

 

http://www.popularhotrodding.com/fea...0405phr_gmdod/
http://www.edmunds.com/advice/specia...1/article.html

 

Its not as if the pistons stop moving...so as far as rings/bearings there's going to be no less wear. I suppose you'd see less valvespring fatigue and less roller rocker wear, and maybe even extended valve seal life, but as long as most of those items last normally these days I don't think its really a quantifiable benefit.

Isn't this in the wrong forum?

 

Well, actually it's possible there'd be less wear on the cylinders that get deactivated. Without the heavy thrust load of power cycle, there could theoretically be less wear on that side of those cylinders. Rod bearings might also have a somewhat prolonged life.

As to whether it wears more than in an engine without DOD, I doubt it. So a DOD engine should last as long as a regular engine, except some components might last even longer.

 

Half means the unit divided by 2, not necessarily one bank of a V engine. But my overall point was wrong.

I suppose they were not concerned with unequal numbers of combustion events in each cylinder. It is simpler and cheaper to just set it up like they did.

 

From Popular Hottrodding article on DOD:
What's more, the LZ8 is designed to work in a rear-wheel drive configuration, which would pave the way for its use in a future base-model Camaro. If that occurs, the LZ8 would trump the '05 Mustang's base V-6 by nearly 40 horsepower while returning the same fuel economy.

Interesting

From the diagrams in that article, I would say it would be very important to keep the oil very clean with fresh oil changes in the engines with DOD given all the extra oil going through small tubes to each lifter, its a pretty complex oiling system with electronic control for the oil on each lifter.
Does the LS4 with DOD have a different oil change intervals?

 

I bet a DOD V6 would get better gas mileage than the LZ8 in a base Camaro