Expire is not really the right term; but effectively yes. In general a cheque older than six months will be considered stale-dated and will not be honoured. Reference the Canadian Payments Association FAQ.
SKYACTIV is a brand name for a series of technologies developed by Mazda which increase fuel efficiency and engine output. The initial announcement of the SKYACTIV technologies include new engines, transmissions, body, and chassis, which appeared in Mazda products from 2011.
WASHINGTON (December 16, 2015) â The U.S. Environmental Protection Agency (EPA) noted in its most recent Light Duty Fuel Economy Trends report that Mazda Motor Corporation is the most fuel-efficient auto manufacturer in the U.S. With the highest fleet-wide adjusted fuel economy performance of 29.4 miles per gallon (MPG), and the lowest CO2 emissions ...