Diesel oil for older engines

[Welder Dave]

Probably been asked a zillion times but what's a good 15W-40 oil to use in older engines up to 1994. I need to change oil in my 65 Perkins, 86 Cat and 94 Kubota. Rotella T triple protection seems to be everywhere. Best price is $63 for 18.9L at Walmart. Chevron Delo 400 SDE is on sale for $70 for 18.9L. I've read some people don't like the Rotella T and the Delo is better but I've also read the opposite. Mobil Delvac 1300 is another one I might be able to find locally or would the Walmart Supertech oil be worth considering?

 

[John C.]

I got to the point where I go by price and the SAE and API specs on the cans. Unless you buy some cheap no name brand, it's all more than adequate when changed per machine manufacturer's specs.

 

[TomA]

I think the Supertech. Is the most appropriate for older engines.

 

[56wrench]

I've had no problems with rotella so far. its readily available and they still make monograde for older equipment the last time I checked although the monograde may not be in stock and would have to be ordered

 

[Welder Dave]

I use 15W-40. The engines are older, about 4000hrs. on the Perkins and Kubota and 1500 on the rebuilt Cat. Still want them to last so want a decent oil.

 

[funwithfuel]

Believe it or not. Walmart's supertech line has been reviewed many times . Often times the results leave the competition wanting. I am always surprised when I read that cuz I have used either delo or rotella my whole life in everything even my mowers.
I know supertech is rebranded stuff of unknown origin, but it's good stuff.

On paper.

 

[bigrus]

We tend to go for a 20W50 in "older" generation diesel engines

 

[Bumpsteer]

I've been running Rotella 15-40 in my 9n & 850 Fords for 25+ years now.....

Ed

 

[petepilot]

I've been running Rotella 15-40 in my 9n & 850 Fords for 25+ years now.....

Ed

rotella t in everything around here .including the pass.vehicles