It would depend on the type of Jeep engine. Some WWII 4 cyl. jeep motors are still being used today in the original jeeps. But i believe the older jeeps were expected to last 70,000 -100,000 miles while the newer overhead motors are expected to reach 200,000 miles . Chances are , they can all last 5x longer than expected with proper care and maint.
200,000 + miles
The life expectancy of a 1997 Jeep Wrangler Sport is 16 years. To get the full life expectancy out of a vehicle it should be properly maintained.
The average life expectancy of an engine in a Ford Focus is around 150,000 - 250,000 miles. You can extend the life expectancy of your engine by making sure you do regular maintenance and upkeep on it.
The life expectancy of a 6.6L Duramax is 10 years and 350,000 miles. The life expectancy of a 6.7L Cummins is 11 years and 410,000 miles. The life expectancy of a 5.9L Cummins is 15 years and 500,000 miles!
I just hit 300,000 on my 4.0.Oil pressure is getting pretty low at idle, but starts everyday summer or winter.
1997 buick life
5 years
The life expectancy of a timing chain on a 1999 454 Vortec engine is 5 to 10 years. The exact time depends on how often the vehicle is driven.
500,000 miles500,000 miles
What kind is it the aisin 5 or the ax-15 the ax-15 will last you forever
200,000 miles is average with normal maintenance.
If you treat it well , they can go for hundreds of thousands miles..