2009 Honda CRV EX-L Diffferential with VOA Added I

[NorWest5]

2009 Honda CRV EX-L (all wheel drive)

I've had a virgin oil sample of the Honda Dual Pump II fluid analyzed since my original report last week. See below for details including TBN and TAN.

Miles on fluid: 28,272
Miles on vehicle: 28,272

Fluid: Original fluid fill: Dual Pump II

Replacement: Dual Pump II

Actual results on left. Original VOA in (brackets) on right below.

Fe 67 (0)
Cr 1 (0)
Mo 0 (0)
Al 2 (0)
Cu 15 (0)
Pb 0 (0)
Si 18 (5)
Sn 0 (0)
Si 18 (5)
Na 4 (0)
K 3 (0)
Mg 242 (240)
Mn 8 (0)
P 193 (174)
B 297 (291)
Ba 24 (0)
Zn 322 (288)
Ca 492 (374)
kV cSt @40C 26.0 (30.7)
kV cSt @100C 5.20 (7.4)
TAN (0.51)
TBN (3.2)
Anti-freeze neg
Fuel neg
Water neg

Wear control chart: 103.4

 

[Hokiefyd]

Thanks for posting this, and for paying for the VOA.

Looks very similar to their ATF formulation, including starting hot viscosity and the in-use sheared viscosity. Very interesting.

 

[badtlc]

how does Si increase in a sealed system?

 

[NorWest5]

I can only guess. My guess is that some dirt attached to the bottom of the differential near the drain plug got washed into the sample as it flowed out.

 

[NorWest5]

Originally Posted By: Hokiefyd
Thanks for posting this, and for paying for the VOA.

Looks very similar to their ATF formulation, including starting hot viscosity and the in-use sheared viscosity. Very interesting.


I only plan on running 15K miles on the DPII fluid that replaced this. Almost 29K is too many miles even though Honda recommends more.

 

[Hokiefyd]

Originally Posted By: NorWest5
Almost 29K is too many miles...


What is your measurement for this? How do you know how many miles is too many? Do you just not like the wear numbers in the UOA?

For what it's worth, I am on a 30k mile schedule on the AWD fluids in our vehicles. The MDX gets 80W-90 in the transfer case and VTM-4 in the rear unit every 30k, and the CR-V gets DPF-II in the rear unit every 30k. You are right; Honda does recommend more, but I find that 30k miles is simply an easy-to-remember number and it's something that I don't mind spending the money on.