Rural King motor oil ???

Does anyone run Harvest King 15-40 diesel motor oil from Rural King. Was pricing there brand compare to 15-40 Rotella T that I usually use. The specks on the back of the jugs are the same. Rural King , Harvest King brand $8.00 per gal. Rotella T $12.00 per gal. The difference adds up when buying 10 gallon. Have had some people tell me that most generic and name brands all come out of the same barrel.
 
Larry - the base product comes out of the same rail car. The additives are usually different. Most house brand motor oils barely meet specks, most name brand oils exceed specks. At least this was the way it was when I was in the labs testing them.
 
Is it worth saving $5.00 per oil change and eventually damage a several thousand dollar machine? My 2 cents worth!
 
not rural king but fleet farm same kind of stores been using there oil for 45 years and never had a engine fail from lawn mower to 500 hp loader engines 15-40 in everything
 

I'm using it in all 5 of my Ford tractors, Perkins powered skid loader and Cummins powered trucks, picked up a couple of 2 gallon jugs the other day for $12.99 a jug, would have got more but that's all they had.
 
A few years back the turbo diesel register did a big oil test and they compared just about every oil under the sun turns out the Walmart brand tested just as high as the high dollar brands of conventional oils they tested unused samples of every major brand and theft wasn?t a cent worth of difference in any of em meeting the same diesel oil spec . This is not the case with tractor transmission hydraulic oils as the api has no standard when it comes to tractor hydraulic oil
 
Mobil had good rebates that make their oil as cheap or cheaper than store brand oils. I've come to prefer Mobil Delvac over Rotella. Our 1855 seemed to burn less on Delvac over Rotella.

Donovan from Wisconsin
 
Not diesel but regular 10-40 oil and been using for several years And mechanic friend that is all he uses. butweight depends on application. Used 5-20 in my van untill it got totalled in middle of a 3 semi pileup. Cenpeco claims they are the best and years ag talked dad into trying some and we had been using TSC oil. Salesman claimed his oil would hang onto surfaces better than anything else. When he came around next time Dad was prepaired for him. Dad had put a samploe of both in glass jar with lid And the TSC oil hung to the glass of the jar and the Cenpeco run down like water. If it rins off glass like that it is not going to hold to cylinder wal of the engine any better. That was the last time CEnpeco tried to sell us any oil. You can try same thing and see for your self if it runs like water or holds a film of oil.
 
Delvac 1300 is all I use in the tractors. That is what we used on the big trucks at work. The Mack I drove had over 24,000 hrs on it and the valve covers were only off to check the valve adjustment. This was a Log Truck so there was a lot of loader time on it.
 
I would like to see those test results on the oils. I know it has been quite a while since I was in the lab but that is somewhat opposite of what we saw. Due to a house fire I no longer have the results of the tests we ran. Do you have a site I can look at?.. I do hope the company's mfg and selling the cheap oil have improved their products.
 
I'm sorry, but quibbling over $40 on even a $1000 tractor is crazy to me. Even less so when you're talking about a $2500, $4000, or $10000 tractor. It's entirely up to you, and it will probably be just fine, but there's always that little doubt in the back of your mind if/when you run into issues down the road, was it the oil?
 
TSC and Cenpeco were both supposed to be same 10-40, Hard to tell if things labled correctly. 30 gal drums.
 

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