Rotella 5W40, 8,214 mi OCI, Honda ST1100

[Rick_A]

1999 Honda ST1100
Water-cooled V4
Shared engine/trans. oil, wet clutch

Comments:

Calendar-wise, this is the longest time I have left the oil in at about 15 months.
I no longer commute on the bike so it takes a long time to go 8,000 miles
Note that this oil was the older "SL" version from my stash and I used LC20 during this OCI.

Blackstone Labs Test results:

Oil Shell Rotella 5w40
Filter ST7317
Total Miles 187,100
Miles on oil 8,214
Time on Oil 15 mo
Make up oil 0

Aluminum 6
Chromium 0
Iron 14
Copper 6
Lead 2
Tin 0
Moly 6
Nickel 1
Manganese 0
Silver 0
Titanium 0
Potassium 1
Boron 2
Silicon 4
Sodium 25
Calcium 3146
Magnesium 26
Phosphorus 1132
Zinc 1349
Barium 0



Flashpoint F 405
Fuel Antifreeze 0
Water 0
Insoluables 0.3
SUS Visc@210f 65.9
cST Visc@100c 11.85
TBN 4.5

 

[Voltmaster]

Man, Rotella runs great in everything. The High zinc and phosphorous shows that its an SL version.


I dont know how much iron is too much for a bike, but numbers seem good except for iron . considering 8k on oil and decently high mileage on your bike , I wouldnt worry about it.

Thanks for the post, may start using Rotella in my buddies bikes from now on.

 

[Chris142]

You have 187k on a bike!

 

[sunruh]

very nice numbers.
actually the iron and aluminum and copper are pretty darn good for 8k miles.
yes it sheared to a 30wt (65 vs 68) but that is expected in the 5w40.

nickle of 1 and lead of 2 show either scatter or some oddity.
shocked at no silver from the stoners.

if you believe the insoluables at 0.3 that is a touch high. normally at 0.2.

flash of 405 is nice showing no fuel.

14 year old bike running like new. nice!!!

no reason to change anything but your underwear!

steve

 

[chubbs1]

Man that is an excellent engine! Congrats!

 

[Quattro Pete]

Great report!

 

[apollomaker]

Hello Rick ---

Thanks for sharing this report. It certainly serves to verify the selection of RT6 as my major oil of choice for my bike. A great "comfort factor" for sure. Like you, I don't commute any more so my riding is for fun and recreation so it takes me a while too to wind up an OCI

Have Fun on your ST1100 !!! Cheers --- Bob

 

[FZ1]

Nice motor in your "Cruise Missile".

 

[Reg# 43897]

One of Honda's greatest ever motorcycles. And one of their best engines. Those are great results. I have used that stuff in my FJR to good effect. As Steve said above, leave it the heck alone.

John.

 

[dnewton3]

Nice UOA.

No reason not to extend the OCI further; get some payback from the T6.


I have a buddy who has 150k+ on his ST100; engines are like granite. Other issues have come and gone; swingarm rotted from salt (replaced) and diff bearing went out (replaced). The two were probably related ultimately ...

 

[Rick_A]

The oil still has plenty of life but I've been trying to run all of the oils to 8,000 miles so that I could do some comparisons. I have a pretty long history of UOAs on the site for this bike.
One problem with my plan is that I usually only run 1 OCI on the oils and have some contamination from the last oil.

Rick