CA Oils: Synthetic?

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   I have read many threads here on oils for the Allis.  I have a CA and will change the oils.  
The transmission/hydraulics is easy and will use Universal Transmission/hyd Fluid (UTF)

I have not seen any comments on blended synthetic or full synthetic such as the Rotella 10-30 T5 or T6.  Is there value in the extra $20-30 cost/yr for T5 or T6 vs. "regular" T4? 

I also know many add Zn additives, but not sure if that is a good idea with synthetic blends or full synthetic.

I don't want to add something that loosens up all the sludge and damages the engine and maybe stick with a good 10-30.  Will take the valve cover off this weekend and see if there is much build up (the engine has been rebuilt to some extent at somepoint in time since the front pully is the newer style without the crank slots).

Thank you!

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CA13414 Members Profile Send Private Message Find Members Posts Add to Buddy List Silver Level Joined: 25 Feb 2024 Location: Nebraska Points: 270	Post Options Post Reply Quote CA13414 Report Post Thanks(0) Quote Reply Topic: CA Oils: Synthetic? Posted: 22 Mar 2024 at 6:01am
	I have read many threads here on oils for the Allis. I have a CA and will change the oils. The transmission/hydraulics is easy and will use Universal Transmission/hyd Fluid (UTF) I have not seen any comments on blended synthetic or full synthetic such as the Rotella 10-30 T5 or T6. Is there value in the extra $20-30 cost/yr for T5 or T6 vs. "regular" T4? I also know many add Zn additives, but not sure if that is a good idea with synthetic blends or full synthetic. I don't want to add something that loosens up all the sludge and damages the engine and maybe stick with a good 10-30. Will take the valve cover off this weekend and see if there is much build up (the engine has been rebuilt to some extent at somepoint in time since the front pully is the newer style without the crank slots). Thank you!
	Helping the aged survive and thrive! 1953 CA

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PaulB Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 12 Sep 2009 Location: Rocky Ridge Md Points: 4722	Post Options Post Reply Quote PaulB Report Post Thanks(0) Quote Reply Posted: 22 Mar 2024 at 7:57am
	There's no real need for a synthetic oil in the engine such as a CA. However if that's what you want to do, pick something like AMZIOL Diesel & Marine, Z-ROD or something suited to older engines with flat tappet cams, if not you're asking for trouble. You last statement saying that you don't want something that will loosen sludge will be nearly impossible to find, since nearly ALL Non-Detergent oils are NLA. If you are just using your CA for normal use, I'd suggest something like Shell Rotella in a T4 version, anything newer will not have the Zinc needed for your camshaft. That's just my opinion, you're bound to get many different ones. I don't know about other brand oils. Shell RotellaT and AMZOIL are the only Oils I use.
	If it was fun to pull in LOW gear, I could have a John Deere. Real pullers don't have speed limits. If you can't make it GO... make it SHINY

steve(ill) Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 11 Sep 2009 Location: illinois Points: 81064	Post Options Post Reply Quote steve(ill) Report Post Thanks(0) Quote Reply Posted: 22 Mar 2024 at 8:02am
	Its not a high HP race engine.. Dont waste your money... Any 10w 30 DYNO oil is fine. Get it at Wal Mart if you want.. Makes no difference... Been doing that for 40 years.
	Like them all, but love the "B"s.

Steve in NJ Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 12 Sep 2009 Location: Andover, NJ Points: 11788	Post Options Post Reply Quote Steve in NJ Report Post Thanks(0) Quote Reply Posted: 22 Mar 2024 at 8:10am
	Todays motor oils far surpass anything made when these Tractors were new. I run standard Cam 2, or Vavoline 10w30 motor oil in my big Tractors and never had any problems. I do run Royal Purple in my ZT mower and mainly because of the size of my lawn and the summer heat. I'm out there for about 3.5 hours mowin' and I'm rockin' and a rollin' with that Badboy mower. That 27 horse Kohler is hummin'. That machine just turned 14 years old. I also run synthentic in the other small mowers. Again, mainly for the heat they can create in the hot summer. My one Toro push mower, that was pushing 10 years old, the deck rotted out and the engine still ran fine. Still have the engine for a spare yet on the shelf in the garage. Buying another mower was cheaper than buying just a deck at the time. That bugger still ran great with the synthentic in it. I also just run standard 5w30 in my Antique cars as well. Soooo... I guess its just up to the individual what they want to run in their machines... Steve@B&B
	39'RC, 43'WC, 48'B, 49'G, 50'WF, 65 Big 10, 67'B-110, 75'716H, 2-620's, & a Motorhead wife

DPKII Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: 08 Mar 2023 Location: Texas Points: 66	Post Options Post Reply Quote DPKII Report Post Thanks(0) Quote Reply Posted: 22 Mar 2024 at 8:45am
	Oils in mowers made me remember an incident I had. Years ago we lived in town and had just moved out to the country. The house in town was on the market and I would go every week or so to mow with a self propelled walk behind with a 5ish HP Honda. Was mowing the back yard and the RPM started to drop, thought it was tough grass but continued to drop and then a tight squeaking sound to shut down. It was hot, and no oil on the dipstick with vapors coming out. Didn't have any 30wt at the house but did have some ATF for some reason. The motor was locked so I put ATF in the crankcase, let it cool and then worked the blade back and forth to get it free enough to spin. Got it cranked and it squeaked for a bit, kept running at low rpm and slowly gained rpm. After a couple minutes it ran full rpm and I finished mowing the yard. Figured it was probably junk but ended up putting 30wt back in it and continued to use. I still have it and it still runs although I haven't needed it in a few years as I can get around everything with the rider.

CA13414 Members Profile Send Private Message Find Members Posts Add to Buddy List Silver Level Joined: 25 Feb 2024 Location: Nebraska Points: 270	Post Options Post Reply Quote CA13414 Report Post Thanks(0) Quote Reply Posted: 22 Mar 2024 at 7:53pm
	Outstanding! I did pick up some Rotella T4 10-30! Will change it out tomorrow! I try to use synthetic in all my newer engines, but did not want mess up this engine. Appreciate the perspective of avoiding newer oils with the tappet cams and etc. Love the lawn mower story. Amazing how they can survive. Reminds me that I have always wanted to set up a betting pool for how long a car would run without any oil. I have heard that they can run for hours!!! Maybe someday! Thanks again!! < id="idg-io-safe-browsing-enabled" ="" oninit="true"> < id="idg-io-safe-browsing-enabled" ="" oninit="true"> Edited by CA13414 - 22 Mar 2024 at 8:30pm
	Helping the aged survive and thrive! 1953 CA