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Is Prolonged 3500 RPM Too High to Run Engine?

2K views 6 replies 5 participants last post by  tyl604 
#1 ·
I accidentally left the gear selector in 3rd, got on the freeway and drove it for a good 25 minutes (spaced out with Saturday errands and too busy). Noticed the tach was at 3500 after a good 30 miles, and dropped it into 4th. Out of curiosity I ran the engine up to 3500 in 4th and it could barely reach 90 mph. Just wondering how much life I took out of the engine by running it that hard.
1989 Range Rover--stock tires, stock everything (automatic)
 
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