Skip to content

Cheapest 5W-40 oil

The cheapest 5W-40 oil we track costs $8.40/quart, with a median of $11.72/quart across 6 tracked products, as of July 2026. Because this is scoped to 5W-40, the price is right for what you actually need — not skewed by a different viscosity. Prices re-checked continuously.

💚 Cheapest 5W-40$8.40/quart

6 deals · cheapest per quart first

Frequently asked questions

What's the cheapest 5W-40 oil right now?
The cheapest 5W-40 oil we track costs $8.40/quart, with a median of $11.72/quart across 6 tracked products, as of July 2026. Because this is scoped to 5W-40, the price is right for what you actually need — not skewed by a different viscosity. Prices re-checked continuously.
Why rank 5W-40 oil separately?
A viscosity you can't use isn't a deal. Comparing only 5W-40 keeps the cost per quart honest — a cheap price on a different viscosity tells you nothing about what your 5W-40 oil should cost.

All motor oil & fluids ranked →What’s a good price?