There’s no particular reading up till when an Engine can last without the overhaul. Just like the fuel efficiency, it depends upon various aspects including maintenance, driving style etc. From the general observation, most of the modern day engines can work well up to 1 Lac – 1.5 Lac kilometres, given that they are treated well and serviced on schedule as prescribed by the manufacturer.
Drive Safe,
350Z
Totally agree on that. Any engine's age will depend on the following factors:-
1. Petrol/Diesel/CNG or LPG use
2. Driving style
3. Driving condition - if its driven in plains or mountains, hot or cold etc
4. How long is it used once started/cranked. Maximum damage to engine happens at times of cranking up.
5. Type of engine oil used
6. Regularity of servicing
Indian engines wont last more than 1.5-2 lacs without overhaul. My dad had a Ambassador which he drove for more than 2.5 laks kms, but it died after that.
Max engine life is known to be from Hondas and Toyotas.