What's the Difference Between 0W-40 and 5W-40 Motor Oils?

Haha, that’s a tough lesson! Folks, always read the owner’s manual. Any humorous stories with oil choices?

The main difference between 0W-40 and 5W-40 motor oils is their viscosity at low temperatures. 0W-40 flows better in cold climates, which can help with lubrication during start-up. This could potentially lead to better engine health over time, especially in colder regions.

That’s true! My friend lives in the north and swears by 0W-40 for his winters. The quicker flow really seems to help keep his engine happy.

Absolutely! 0W-40 can lead to longer oil change intervals in colder climates. However, for moderate weather, 5W-40 can perform just as well, especially if you’re not pushing your engine hard.

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That’s really interesting! Has anyone here experienced longer engine life or performance from using one over the other?

From my experience, I noticed a difference after switching to 0W-40 from 5W-40. My engine runs smoother and quieter, likely due to better start-up lubrication! Definitely worth considering based on driving habits.

That’s great to hear! I’d love to try it but worried if it will perform similarly for my high-mileage Mustang. Anyone have thoughts?

It’s all about compatibility and your driving style! 5W-40 might be just right for your Mustang as it provides a bit more viscosity at operating temperatures, but 0W-40 wouldn’t harm it, especially if you drive it in colder weather frequently.

Great point! I’m thinking of switching, but it feels like a big step. I wonder what the oil longevity difference really is though.

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To add some humor, if oil longevity were a race, 0W-40 might start strong (plus smoother starts) but who’s winning when it comes to durability? I guess it depends on the driver’s habits too. Anyone care to wager?