They say that if it's too good to be true, it probably isn't.

But, it's true: Gasoline at some pumps around Calgary and Alberta will be dropping to 1984 prices.

That's 39.9 cents a litre, in case you forgot.

It's been about $1.19 a litre lately.

Shell Canada say they made the savvy move to celebrate 30 years of refining in Alberta.

They'll be tweeting out locations for the great buys through the day.

Follow a stream of their tweets below.

Tweets by @Shell_Canada