if you drop one out the window at the rate of one per mile, than 9 is your answer however this number will vary depending on the DPM... the DPM (drops per mile) can be controlled by adjusting your variable IQ. :)
Oil last forever but oil does get dirty. Synthetic oil like conventional oil does get dirty. You can extend your oil changes slightly if you synthetic oil but no more than two or 3000 miles.
As long as there are no leaks and it never gets low of lubricant modern differentials should last the life of the vehicle. For even more insurance against failure have the lubricant changed at 100,000 miles and install synthetic lube.
If you drive under normal conditions, I recommend changing conventional oil/filter every 5,000 miles. Blend every 6,500 miles. Full Synthetic every 8,000 miles.
Oil does not wear out it just gets dirty. Change it every 7,500 -10,000 miles if you use synthetic depending on how you drive.
They should last 100,000 miles.
a few seconds.
As long as the Engine is Sound and you have no Major Oil leaks. I would consider a Synthetic,to help it last another 160K. Hope This Helps.
There is no real average. I have seen them last 200,000 miles and I have seen them fail in 50,000 miles. I would say they should easily last 100,000 miles or more.
It should be changed every 60,000 miles
There is no way of saying for sure. As long as the engine never overheats and you change the coolant every 50,000 miles it should last the life of the engine.
All oil should be changed every 1500-3000 miles period except when using synthetic oil then 3000-5000 miles
a long fcuking time! seems like hours!