</font><font color="blue" class="small">( I doubt that your oil had anything to do with it running rough, it did turn over and start didn't it? )</font>
Barely. I ran 10W-30 one year and it started fine in the winter. I ran 15W-40 and it started poorly and rough if at all. A new battery didn't help (summer did).
Is 5W-40 sufficient for a BX-2200 to run all year? I really am not well versed in what these numbers mean.
5W-40 means it's the viscosity of 5 weight oil at winter temperature, I forget what temperature that is, somewhere between 0 deg. and 32 deg. F as I recall. The viscosity would then be the same as straight 40 weight at the engine's operating temperature.
I'd have no problem using that, but I'll probably use Mobil Delvac 1 5W-40 for diesels, it's good oil and I alreaqdy use it in my '04 F-350 diesel.
Mobil 1 ! Does Kubota label their own oil like JD? I use either Delvac 1 or truck n SUV just because I have it in the shop for my trucks and its proven itself to me over and over on my oil analysis.
Looking at both your mobil oils, they look ok in ZDDP but CA looks a little low for me, below 3000 ppm.
Also Delvac1 or SUV s low in VI (151), has 1.35 wt% ash (too much for me). I do not know what HTHS or Noack is so I would have to look it up. I think it was around 4.0 HTHS and Noack are in the 6-10% range for there oils. I would personally not buy an oil over 7 but again that is me.
Both good oils and I would pay about $12 +/- 1 per gallon and no more.
Mike, Here are my last numbers from an oil analysis after 15k. I only was running a stock AC filter at the time but swapping it out every 15k. This was between 10k-25k on my truck some of the heavy metal numbers are very slightly elevated. I'm at 60k now and I switched back to 10k oil change intervals useing M1303 filters on my Duramax. I completely agree with you on the ash. That number would send me in a tail spin.
2004 GMC Sierra
Mobil Delvac 1
Soot <0.1
Oxidation 14.00
Nitration 8.00
TBN 10.1
Iron 15
Chromium 0
Lead 4
Coppper 25 * slightly elevated normally I run around 16
Tin 3
Aluminum 2
Nickel 0
Silver 1
Silicon 25 * Slightly elevated
Boron 62
Sodium 5
Potassium 5
Magnesium 474
Calcium 2181
Phosphorus 1563
Zinc 1658
Molybdenum 0
Fuel Absent
Water 0.0
Glycol None