Motorists will want to wait until Sunday to fill up the gas tank during the first weekend of October, with prices briefly set to jump above $1.90 a litre before dropping on Sunday. Gas prices increased seven cents a litre in Ottawa on Friday to an average of $1.85 a litre. Canadians for Affordable Energy President Dan McTeague says prices are expected to increase another seven cents a litre on Saturday to 192.7 cents a litre. McTeague told CTV News Ottawa on Friday evening that gas prices are forecast to drop four cents a litre on Sunday back to 189.9 cents a litre. “So, there’s a bit of relief on the way and has a lot to do with the potential that Europe may be releasing some of its emergency supplies of diesel, gasoline, and to a lesser extent oil,” McTeague told CP24. On Friday, G7 countries agreed to release 100 million barrels of diesel and crude oil from emergency reserves in the coming weeks. McTeague said Sunday’s drop in prices will be short-term due to the ongoing conflict in the Middle East that has disrupted global supplies. The price of gas briefly hit 191.9 cents a litre in Ottawa two weeks ago, before a 10 cent a litre drop in prices due to the switch from summer-blend to winter-blend gasoline. Diesel prices are expected to drop eight cents a litre in Ottawa on Saturday to 251.9 cents a litre. McTeague says diesel will drop another six cents a litre on Sunday. With files from CP24’s Bryann Aguilar and The Associated Press