Looking for good Synth 10W-30 for Diesel

[klm]

I doubt that your oil had anything to do with it running rough, it did turn over and start didn't it?

 

[r0GuE]

</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.

Thanks,

 

[gsxr1100]

I ran their 15w-40 HDD&M all year last year. Started fine down to -9 to -10..I have there series 3000 and trying then test.

 

[fastpat]

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.

 

[RalphVa]

The first number in the xxWxx series is the viscosity range at 40 C (104 F). The second number is the viscosity range at 100 C (212 F).

Ralph

 

[Docsknotinn]

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.

 

[gsxr1100]

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.

 

[Docsknotinn]

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


Vesc ( 100c) 13.6

 

[klm]

Back to the original subject, this is not an oil issue, sounds like fuel related, maybe fuel filter or needs to add fuel conditioner.

 

[gsxr1100]

I agree, based on the numbers, it sounds fuel related. The oil is good down to -58 F.