caissiel
Laurent
well that's great info
will surely continue with 2 cycle oil
will surely continue with 2 cycle oil
Yeah all Spicer tested was lubricity numbers.I just received two big bottles of optilube. I've been using the diesel kleen... I guess we'll see how the other stuff works. I doubt if I'll be able to tell the difference but the numbers are there. I wonder how well this stuff will keep injectors clean etc. I guess all they tested was lubricity?
Alan
What does HFRR score stand for at the top of this chart?
Ok, but what do the numbers mean then,......duh? Sorry, but I,m trying to follow all this technical stuff.
Diesel fuel and other fluids are tested for lubricating ability using
a device called a "High Frequency Reciprocating Rig" or HFRR. The HFRR
is currently the Internationally accepted, standardized method to
evaluate fluids for lubricating ability. It uses a ball bearing that
reciprocates or moves back and forth on a metal surface at a very high
frequency for a duration of 90 minutes. The machine does this while
the ball bearing and metal surface are immersed in the test fluid (in
this case, treated diesel fuel). At the end of the test the ball
bearing is examined under a microscope and the "wear scar" on the ball
bearing is measured in microns. The larger the wear scar, the poorer
the lubricating ability of the fluid.
The U.S. standard for diesel fuel says a commercially available diesel
fuel should produce a wear scar of no greater than 520 microns. The
Engine Manufacturers Association had requested a standard of a wear
scar no greater than 460 microns, typical of the pre-ULSD fuels. Most
experts agree that a 520 micron standard is adequate, but also that
the lower the wear scar the better.