save on

save (money) on something

to save money or some amount of money on the purchase of something. I can save a lot of money on this purchase by buying it somewhere else. I am sure you can save on a new car if you shop wisely.
See also: on, save

save on

v.
1. To conserve money by purchasing something at a discount: Save on all kitchen appliances during our special clearance sale!
2. To conserve some amount of money by purchasing something at a discount: I saved a dollar on my purchase by using a coupon.
See also: on, save
References in classic literature ?
Two years he had been yoked like a horse to a half-ton truck in Durham's dark cellars, with never a rest, save on Sundays and four holidays in the year, and with never a word of thanks--only kicks and blows and curses, such as no decent dog would have stood.
A man could live and save on that; but then there were only half a dozen splitters in each place, and one of them that Jurgis knew had a family of twenty-two children, all hoping to grow up to be splitters like their father.
21, 2011 /PRNewswire/ -- Trucking companies worldwide depend on Ride-On's Commercial High Speed tire sealant and tire balancer formula(TM) (CHS(TM)) to keep their vehicles on the road and to save on tire maintenance costs.