Running on Empty

[JPNinPA]

Good read. Just remember it's not good to run a tank dry.
https://www.yourmechanic.com/article...sher=Skimlinks

JeepWrangler2.8 gallons47-58. Based on stock mpg estimates.



Regards,
JPNinPA

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[TerryMason]

I'm constantly running mine down below the E, and coasting in on fumes. I hadn't really thought about causing damage.
I say this after having recently replaced my TJ's fuel pump. I did noticed that the inside of my fuel tank looked pristine - I didn't see any visible particles or debris.

How could this damage the cat though?

[JPNinPA]

By overheating it. When you run on fumes you are running lean. This condition heats your engine and exhausts gasses. I actually had a O2 sensor go right after running mine out of gas on the highway. And I did note it was above 210 on the temp gage.


Regards,
JPNinPA

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