(photo courtesy: autozone.com)
Hey Sajeev, I got one for you.
Several engines nowadays are set up to operate on half their cylinders under light-load conditions. Would the design considerations for piston rings vary from those normally used for such cylinders that are only used part-time? The question arises in the context of a 2009 V6 Accord that is currently in the Honda dealer’s shop to have the piston rings replaced at the manufacturer’s expense to cure a continual oil consumption and spark plug fouling problem.
With 4-cylinder engines increasing their market share from 40 percent to 53 market share in just 5 years, Ford is forecasting even more growth for these engines in the years to come. The Blue Oval is betting that by 2020, 66 percent of cars will come with a 4-banger.
Even though GMC made a fuss over their Terrain Denali, with its new 3.6L V6, this past week, the hot ticket seems to be the 4-cylinder Terrain, along with its Chevrolet stablemate, the Chevrolet Equinox.