Ok I work for a company maintaining a fleet of 50 EF?EL cabs, they do on average 15000km every 5 weeks.
We service our transmissions (BTR95 and 97) every 60000km, which only includes suction screen and filter, we regularly get 500000km from them!
The donks will go 8-900000km before they stuff up, but the cabs are usually sold befor that, the majority of problems we get are cooling system leaks/overheating, this is in Perth in summer (38c).Othe problem, which we only consider maintenance issues are water pumps, harmonic balancers (they come appart) thermostats (non factory) starters, alternators.
Other thatn that there pretty relaible an long lived.
Consider that they do 700km every day, and start and stop 50 times a day, try that in a family sedan.
Personaly I thing this is incredible service from what is ostensibly an ordinary family sedan on LPG.
I own a 90 EA MPEFI with BTR85, which I only use as family transport, its been quite reliable and has only had head off once due to Perth batery acid water in the cooling systyem.
A7M