best motor oil...

[p m]

if you want to get technical about oil differences, check this table -
http://www.ifsja.org/tech/figures/motoroil.shtml

(That's not mine, I pulled it from some publication to post on the web.)

 

[parthog]

Seems simple to me. Rover engines die occasionally from sludge, synthetic oil doesn't tend to turn to sludge, even cleans it up some, ... I run mine on Mobil 1 or Amsoil, change at 12,000miles, at 89,000 it is clean as new in the valve covers and uses no measurable oil at 12,000miles (doesn't even leak believe it or not). The change interval pays for the oil, the fuel mileage is good, the engine is clean, and I dump less oil into the environment than the 3000mile guys.

I won't tell anyone that they **should** use synthetic, but I also don't believe that telling people that they shouldn't or that it isn't better is a little inaccurate, it's just more money/quart and a personal decision.

It is one of the more common arguments on the 'net though, there's always someone who has never changed their oil in 200,000miles and doesn't burn a quart ...

- Jeff

 

[kennith]

A good point indeed.

Cheers,

Kennith

 

[ptschram]

I run mine on Mobil 1 or Amsoil, change at 12,000miles, at 89,000 it is clean as new in the valve covers and uses no measurable oil at 12,000miles (doesn't even leak believe it or not). The change interval pays for the oil, the fuel mileage is good, the engine is clean, and I dump less oil into the environment than the 3000mile guys.

- Jeff

Regardless of the oil you use, your engine is still generating combustion by-products that are harmful to the engine and the oil. By adhering to a more frequent change interval, I am ensuring the concentration of these combustion by-products is unlikely to ever rise to the point where it will be detrimental to either the engine or the lubricity of the oil. Commonly used oil filters only remove the particulates, not the dissolved by-products.

As for dumping oil to the "Environment", this seems somewhat specious as in my case, my used oil is re-refined for beneficial re-use as both lubricating oil and fuel for any of a number of industrial processes. The incidence of releases to the "Environment" (air, soil, water) is very limited.