hey there. i have a caterpillar d6d dozer in good shape. in today's current times..and oil availability.... what do you guys recommend i use in the dozer? what fluids should i change? when? and how? and with what? i used to run 30 weight non detergent oil like delo-400 in the transmission. hydraulics. and motor. the rear end i think was basic 90 weight. the collant..anything besides prestone. i know that there are new oils out there. i would like to buy less DIFFERENT types of oil for my equipment and more standard oils that cover a variety of machines. a few months ago...i was out of oil and i put in 15w40 (i think) oil in the transmission when it had a leak. will this hurt it? should i drain it and put back in 30 weight delo? should i be using a coolant additive? should i be using generic tractor hydraulic fluid in the hydraulics instead of oil? thanks guys
re oils etc i would recommend cat oils for your machine if a dealer is near by. engine 15w/40 trans sae 30 hyd cat hyd fluid final drives sae 50. dependant on ambient temp range. oil change interval. eng 250 hrs trans 1000 hrs hyd 2000 hrs f/drives 2000 hrs may need to change more often depending on work conditions. the above is standard cat recommendations. filter changes eng 250 hrs trans 500 hrs hyd 1000 hrs air filter depndant on work conditions ie. dust etc hope this helps. regards excat
The answer to your questions depends a lot on how much you are using the machine. More than 40 hours a week and you should be changing oils based on operating hours. Less than 40 hours a week and you should be changing oil on calender intervals. If you have bottomless pockets, use Cat-branded oil. However it's made by Mobil and you would probably get the same size container with a Mobil logo at half the price of one with a Cat logo, both containing basically the same oil. Engine Oil - Anything meeting API CH-4 or CI-4 SAE15W/40 (or 10W/30 if you have really cold temperatures at night) Hydraulic Oil - same as what you put in the engine. If you have just one machine there is no point in buying a separate hydraulic oil. Both 15W/40 and 10W/30 are approved for use as hydraulic oil in this model. Transmission - Anything meeting Cat TO-4 specification SAE30 Final Drives - Anything meeting Cat TO-4 specification SAE50 Coolant - I've had good experience with a product called Fleet Charge Coolant from a company called Old World Industries. Believe it or not but they manufacture over 90% of the coolant sold in the US under various brand names. www.oldworldind.com Every 250 hours or monthly - Engine oil & filters. Transmission filters. Every 500 hours or 3 months - Fuel filters, hydraulic system filters. Every 1000 hours or 6 months - Transmission oil, final drive oil. Every 2000 hours or one year - Hydraulic system oil. Coolant. The above is what "The Book says" for a D6D 04X-prefix. Tailor it to how you are actually using your machine. Footnote: I see that you posted about oils for a 268B skid-steer as well. For hydraulics on your D6D you could use the same SAE10W TO-4 oil as I recommended you use in your skid-steer hydraulics. When I wrote what's above I didn't inititally make the connection it was the same person posting.
hey man! thanks for the reply. trying to get back to basic with the most basic information about servicing equipment. "feeling" out other people's perspective on the basics. people like you. always a good way to find out about fluids. do you think that the 15w/40 oil i put in the d6d transmission will hurt anything? also, does delo-400 30 weight oil work well in the transmission on this d6d? i have always used 30 weight in older cat transmission..but maybe i am wrong..or maybe there is a better idea? thanks for the help!
cat oil pricing is very competitive in aust when buying same quantities. thought it would the same over there. regards excat
Answers to your questions. 1. Not advisable to use engine oil in a powershift transmission. It doesn't have the necessary additives for the clutches. 2. TO-4 specification oil is the modern equivalent of delo-400.
thanks guys. so delo-400 is safe for cat transmissions.....but not modern motor oils? and TO-4 is a rating for hydraulic fluid, not motor oil? just trying to clarify. sorry if i seem confused.
DELO-400 is an engine oil, therefore not suitable for powershift transmissions. TO-4 is a rating for power train oils suitable to work in powershift transmissions, final drives, & hydraulic systems (obviously different viscosities required). Motor oil cannot meet TO-4 specification.
oh man. everyone i ever knew in the grading business put 30 weight oil in cat transmissions and hydraulics. woops!
My mistake. I can see where I confused you. TO-4 powertrain oil is the modern equivalent of the former TO-2 specification. This specification is not equivalent to DELO. Putting a 30 weight in transmission & hydraulics would not be a bad thing so long as it was TO-2 or TO-4 oil.
haha. ok. so...basically..in the old days when people put straight 30 weight oil in the engine, transmission, and hydraulics of cat equipment..what kind of oil did they use? or was it all a gamble and wasnt the right way to go about it? and nowdays, i should specifically use what? thanks for your help on all this