10w-40 called for in a Branson 4720H ?

[lowriderb]

Wow sort of surprised.50 hour service is coming upand the owners manual calls for 10-40..the only cj-4 rated diesel oil I can find is rotella t5 10w40 semi synthetic..seems a strange weight for a diesel motor. Are there benefits to using dino oil for break in? valvolene 10-40 maybe?

 

[Tractor Seabee]

Look at DELO 400LE.

Ron

 

[jaxs]

Oil ratings are backwards approved. CK-4 is approved where prior ratings such as CK-I,CJ-4,CK-4 are recommended.

 

[ericm979]

The DELO 400LE 15w-40 is what I used in mine. It rarely gets below freezing here so the higher viscosity base isn't a problem. I found it on sale at Costco.
It's not a turbo (which is hard on oil) and I'll be changing the oil often enough that I don't feel the need for synthetic.

 

[Gary Fowler]

Your owners manual should give you a xxW40 range based on air temps that you will be operating in. 10W-40 is good for where I live in most instances but not so good for the way up North folks who experience below 0 temps. You may need a 5W or even 0W-40 for your area in winter.
I switched to full synthetic for all my uses a few years back. I use the Shell Rotella T6 5W-40 for everything I own, boat engine, motorcycle, lawnmowers, cars, trucks and of course my tractors. The T6 is rated for both gas and diesel apps so I only need one oil for everything. Much simpler than stocking 5 different oils.

 

[mguitas]

Should be able to use 5w -40, I use amsoil.

 

[lowriderb]

Should be able to use 5w -40, I use amsoil.

it gets down to 0 or 5 near ephrata..5w-40 i cant see voiding the warranty..strange i move over to eastern washington with no tsc co. and they just put one in over in western wa, at smokey point.

 

[Texasmark]

Wow sort of surprised.50 hour service is coming upand the owners manual calls for 10-40..the only cj-4 rated diesel oil I can find is rotella t5 10w40 semi synthetic..seems a strange weight for a diesel motor. Are there benefits to using dino oil for break in? valvolene 10-40 maybe?

Sometimes translations get things tangled up. I know of no conventional C (compression....aka diesel) rated oils carrying the viscosity you mentioned. Delo, Delvac, Shell Rot T all come in 15w-40 conventional based C rated and if you want full syn (which I use in my newer tractors) Rot T is 5w-40, probably the others mentioned do too. Do not put S (spark) only rated oil in that engine, however the C rated oils mentioned do list an S rating too.......at the very end of the C ratings, which as stated, cover all previous C specs!

 

[lowriderb]

So it seems like two options. rotela t5 10w40 [only ck-4 [diesel oil] 10-40 I can find anywhere and its only on amazon, a semi synthetic and the weight branson manual calls for ] or t6 [full synthetic] 0w-40,5w40 [or equivelant brand]

 

[Copperhead]

5w40, 10w40, 15w40 all would work just fine. All are 40w oils, and regarding any warranty concerns, no dealer on the planet can tell the difference between 40w oils. the only difference is the cold flow rating and will not show up in oil testing, especially so in used oil testing. 5w40 does covers all the extremes if one wants a one size fits all oil, but that is limited to full synthetic only, with the associated higher cost. In most of my diesels, I use a 15w40 in warm months and 10w30 in cold months. Both oils in a syn blend formulation and competitively priced to even conventional oils. I am not a real fan of a 0w40, primarily because the base oil is about 25w and it has to use a ton of viscosity index improving polymers to meet a 40w viscosity. Unless one is starting cold engines in some very blistering extreme cold temperatures, I would just avoid it.

And has been stated, CK-4 is backward compatible to CJ-4, CI-4+, and CI-4. I have been using a CK-4 for over a year in a 2000 year Detroit engine and used oil analysis shows it is equal with CJ-4 in protection and wear numbers. That engine is on its 5th oil change of CK-4 this year and runs for roughly 450 hrs per oil change.