‘Men have been keeping secrets. … How come nobody told me?’: Woman goes to Lowe’s. Then she spots something unusual about the Mobil, Valvoline, Castrol, Shell motor oil

This woman just shared a tip that may save you a fistful of cash on every oil change.

Some people are wondering how they hadn't figured it out sooner, while others are sharing where else you can get a deal on everything from cleaning supplies to candles.

It may not be the kind of place you'd expect.

Here's where to get cheaper motor oil

In a trending video with more than 77,000 views, content creator Lorraine Gang (@tiffaniamey2) shared her recent discovery.