IH No 1 engine oil in a Detroit Diesel

450D · Feb 20, 2010

I read somewhere about using the wrong oil in a 2 stroke Detroit can cause coking around the exhaust ports. My operators manual specifies API CD-II with a sulfated ash limit ASTM D-874. IH No 1 30wt has API CF-2 CF and SL specs. Does anyone know if IH No 1 meets Detroit specs?
Thanks,
Dave

Anonymous-0 · Feb 20, 2010

I found the easier way was to go to the oil retailer of your choice and get them to look up their charts for the particular engine. I know my 6v53 had to have oil with fly ash, Don't just grab an oil which says suitable for petrol and diesel,,folly and expensive as I found out.

JDemaris · Feb 20, 2010

There are many diesel oils around specifically rated for Detroit Diesel two-stroke-cycle engines. That's the easiet way to play it safe.
To my knowledge, the oil if petro-based has to be a single-weight, and NOT multi-viscosity.

Alex C. · Feb 20, 2010

If its not Strait weight 30 (SAE 30)or 15W-40 don't event run it in a detroit. The coking at the exhaust ports is the least that will happen. Worst, the engine WILL seize and trying to break a frozen detroit lose is the worst.
Alex

Jon Hagen · Feb 20, 2010

I have not heard of coking in the exhaust ports ?

The Detroit manuals say to use a low ash oil so as not to stick the fire rings. (Top piston ring).

buickanddeere · Feb 20, 2010

SF-2 low ash oil. Straight weight is recommended but the Detroit Diesel service manual. Does allow a begrudging acceptance of multi-weight oil as a 4th and last choice.
A straight weight synthetic from Mobile 1, Amsoil, Royal Purple or Lubrication Engineers is SF-2. Would not thicken or gel as a mineral oil would.

Anonymous-0 · Feb 20, 2010

No. 1 has been around a long time, what do you suppose IH put in the old trucks with detroits? Ask your CNH partsman he should be able to get you an honest answer.

MelH · Feb 20, 2010

Dave: I've been running Detroits for 45 years in off road motorscrapers, mostly 8V-71s and a few 12V-71s. A friend of mine purchased a new Hancock 292 with a 4-71. He wanted to treat it well because it was the first new machine he had owned. At the first oil change, He used the highest detergent multigrade oil available. After a 1000 hours, his engine died. Tore it down to find that the ports were loaded with carbon and it had been flaking off and scoring the cylinders. Bottom line was that the good oil had a high fly ash content and it was burning and building up on the ports. He went to a oil that was low in ash in the new rebuild and it was still running well when he sold it 7500 hours later. I have always run staight 40W in my Detroits. It turns out that is the cheaper oil. I use 40W because in central Calif. cold is not an issue, 105' is! Detroit has a spec. on the limit of percentage of ash. I have forgotten it now, maybe has to do with that 45+ years running Iron. Good luck! Mel

CLTX · Feb 21, 2010

I put almost 17,000 hours on one Detroit 671, and over 14,000 hours on the replacement 671. I used Delo 40W the entire time. I thought about multiple weight oils, but never got a definite OK from the Detroit people. So I stuck with the 40W. I would only go with a proven oil. Just my two cents worth. C.L.

Billy Shafer · Feb 21, 2010

I was always told to use 40WT in all the old 71 Detroits. Will not leak out as bad as the other oils.

CLTX · Feb 21, 2010

Detroits can be made leakproof, but you'd better buy the sealer in 5 gallon buckets.

TractormanNC · Feb 21, 2010

Doesn't matter what oil you use, its going to leak out on the ground anyway.

IH No 1 engine oil in a Detroit Diesel

450D

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JDemaris

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buickanddeere

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Anonymous-0

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