Delo400 30W oil

Wes Verbal · Dec 28, 2017

Anyone use the Delo 400 30W in there antique
Iron. Ive been using 15-40 but heard the 30W Delo is some good oil also?

mtf · Dec 28, 2017

Have used chevron delo for over 30 years. 30wt for older tractors, trucks, and loaders. 15 40 for newer stuff.

Oregon Tractor Jack · Dec 28, 2017

I use Delo 400 30W in all my old iron that called for straight 30W. I have heard that 15-40 is only formulated for newer engines and may not be good for the older stuff.

OTJ

37chief · Dec 28, 2017

I used 15-40 in one of my old tractors, and it seized a piston, and scoured the cylinder wall. This was on a tractor with many hours. I only use straight wt oil now. I use 15-40 in my newer tractors with no problems. Stan

2x4 · Dec 28, 2017

isn't that the oil some loggers used in their skidders & dozers hydraulic systems instead of regular hyd. oil? Claimed it was better than the regular oil in every respect.

Crazy Horse · Dec 29, 2017

Hi Chief ....... not doubting the fact that you had an engine seize up but somehow I doubt very much that it had anything to do with using modern 15W40 motor oil. Believe it if you wish, but I don't think that was the reason, countless tens of thousands of old engines use modern oils with no ill effects.

TomA in CA · Dec 29, 2017

Multigrade oil is just thin oil with polymers added as thickeners. I believe in lubricating my engines with oil not polymers. I only will use 30W as the book called for.

Delo400 30W oil

Wes Verbal

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mtf

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Oregon Tractor Jack

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37chief

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2x4

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Crazy Horse

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TomA in CA

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