Date registered: Jan 2005
Vehicle: 1992 W126 300 SE
Location: Head in the clouds
Mentioned: 0 Post(s)
Quoted: 2 Post(s)
Oil be damned !
I have a bit of a suspicion that the auto industry is exploiting us all with regard to engine oil.
In the last 20 odd years there have been sustantial advances in both oil and engineering technology.Synthetic oil is incredibly durable and resistant to heat and work stress.Mineral oils have been vastly improved to resist oxidation, gumming and enhance viscosity stability.Friction surfaces have benefitted from better machining, hardening techniques,alloys and coatings.We have bigger and better pumps and filters in our vehicles,which barely require to be run-in from brand new.But we are still bullied into oil and filter changes at very short intervals-why?
Could it be because it is an extremely lucrative part of the motor trade? Think about the mark-up main dealers put on consumables.If you have a hoist,to change oil and filter takes five minutes,if you don't it's a pain in the arse.With hydraulic lifters,electronic ignition,long-life spark plugs and quick replacement brake pads,the main stealers have vastly reduced ways of recovering the overhead of their workshops.
Apart from our pockets,there is an environmental cost too.Exploration, extraction,refining,packaging,transport,recovery,r eclamation and firsthand pollution if the stuff is illegally dumped.
What if oil change intervals were halved,how many vehicles would end up at the crusher with totally worn out engines?
How about developing a machine to analyse oil to determine how worn or contaminated it is before arbitrarily changing it?
I would also be interested to hear from owners as to which manufacturers currently indicate the longest intervals in their service schedules?