582 reliability statistics

Tough question. They normally do not wear out, they get abused until they quit. Improper storage is the most common form of abuse. Properly cared for engines will quite often not get replaced until they accumulate 800 hours. 

Following proper maintenance and operating procedures is a key factor regarding the reliability of any two-stroke engine! Examining the engine logbook to see what type of maintenance (if any) has been recorded and cross-check it with the Rotax 2 stroke maintenance schedule (found here) - https://www.rotax-owner.com/en/support-topmenu/engine-manuals#582-engines

Keep in mind the Rotax 2 stroke engines have a very low TBO compared to its 4 stroke siblings. The engine should have no issues making TBO if everything is followed according to the maintenance and operating instructions. The overhaul of the engine should be accomplished every 300 hrs or 5 years whichever comes first!

We can tell the age of the engine based on the engine S/N if it's provided and the maintenance logbook should dictate if an overhaul has ever been performed. 150 hr inspection is also VERY important!

Proper maintenance + Proper operation + Propper storage = Reliability 

IF proper maintenance hasn't been followed and there is no proof of such in any logbooks then the reliability of that particular engine is anyone guess! 

I have a 582, I had some of the same questions. For lots of reading I found these engines can last well past 600 hours. The TBO is 300hrs. One thing I did learn is always use genuine Rotax 582 parts in your 582. Use a good oil that meets the requirements of the Rotax specs. Make sure the plane is set up correctly with prop pitch and the jets are the correct size for the environment where you will be flying. FOLLOW THE MAINTENACE SCHEDULE TO THE LETTER!!  Your Rotax 582 will be reliable and give you many hours of reliable flying. 

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