Recent Topics
PEAK Full Synthetic -- Anyone Try It ??
by johnnyz73
06/18/18 07:40 PM
Why high resale value on Jeeps if frames rust out?
by Vern_in_IL
06/18/18 06:48 PM
Wearever Silver Semi-Metallic Brake Pads- Break In
by ET16
06/18/18 06:37 PM
Where to Buy Motul Oil in Stores?
by Hot_Ajax
06/18/18 06:13 PM
2011 Chevy equinox overheating
by hardcore302
06/18/18 06:00 PM
Are my rotors warped?
by Dylan1303
06/18/18 05:44 PM
Ultimate Fast Finish on sale at CDN tire.
by irv
06/18/18 05:23 PM
96 Civic 5w20 Castrol GTX Ultraclean UOA
by researcher
06/18/18 04:52 PM
VOA Castrol Magnatec D1G2, 5w30
by researcher
06/18/18 04:38 PM
Unused dented silicone Fram PH8316 cut open
by slacktide_bitog
06/18/18 04:28 PM
Bring back Merkava_4
by mjoekingz28
06/18/18 04:28 PM
Same grade with differing low start temps
by mjoekingz28
06/18/18 04:24 PM
Self defense
by Camprunner
06/18/18 03:13 PM
Any apple experts here?
by maverickfhs
06/18/18 02:50 PM
Cost-no-object 75W-90 GL-5 for a differential?
by d00df00d
06/18/18 02:34 PM
Pittsburgh Dad, this guy is a trip
by Rat407
06/18/18 02:06 PM
14 Jeep GC 5.7, PP 5w20 & 0w20
by Vigg
06/18/18 01:52 PM
Sell me on a SSD drive...........
by ZZman
06/18/18 01:07 PM
need some ideas on my issue
by matrass
06/18/18 12:36 PM
Put Pennzoil Platinum Euro L in a Honda.
by dunlop0078
06/18/18 12:36 PM
Newest Members
3horseman, Firedog45, WtsTacoma01, Orion62, Revd
65264 Registered Users
Who's Online
83 registered (2004tdigls, 2015_PSD, ArrestMeRedZ, ARB1977, 08z06, 4WD, 7 invisible), 1640 Guests and 47 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
65264 Members
67 Forums
285539 Topics
4765408 Posts

Max Online: 3590 @ 01/24/17 08:07 PM
Donate to BITOG
Topic Options
#4690725 - 03/10/18 05:17 PM Rotella T4 15W40 + T6 5W40 = "T5 10W40"?
Reddy45 Offline


Registered: 08/15/08
Posts: 2962
Loc: USA
I have some odds and ends of these oils sitting around and thought about mixing them up in a roughly 50/50 mix.

The T6 5W40 is known to shear really quick in my bike, whereas the T4 15W40 remains quite stable for a reasonable OCI.

I know these can mix no problem, but would the resulting viscosity be 10W40?

Top
#4690731 - 03/10/18 05:21 PM Re: Rotella T4 15W40 + T6 5W40 = "T5 10W40"? [Re: Reddy45]
PaulManDude Offline


Registered: 03/09/18
Posts: 3
Loc: New England
Lol I literally just started a thread about the same thing in autos a few seconds ago. I think the 15 weight stays 15 and doesnt get “watered down” to 10. At operating temp I believe it will stay a 40 weight. Not sure why syn would sheer down quicker
_________________________
Horn went “Beep”
Engine purred
Friendliest sounds
You ever heard

Top
#4690740 - 03/10/18 05:32 PM Re: Rotella T4 15W40 + T6 5W40 = "T5 10W40"? [Re: Reddy45]
beanoil Offline


Registered: 10/17/04
Posts: 2951
Loc: Midwest, Illinois
The Widman viscosity calculator is your friend.
Hit the Shell site for PDS sheets with viscosity specs, plug them into the calculator, and see where you will actually wind up.
Calculator
_________________________
beanoil: Tough under heat, real dirty afterwards.

Top
#4690776 - 03/10/18 06:27 PM Re: Rotella T4 15W40 + T6 5W40 = "T5 10W40"? [Re: beanoil]
Reddy45 Offline


Registered: 08/15/08
Posts: 2962
Loc: USA
Originally Posted By: beanoil
The Widman viscosity calculator is your friend.
Hit the Shell site for PDS sheets with viscosity specs, plug them into the calculator, and see where you will actually wind up.
Calculator


Very handy tool! The resulting cST @ 100C would be 14.52 so still a 40wt

Top
#4690847 - 03/10/18 07:50 PM Re: Rotella T4 15W40 + T6 5W40 = "T5 10W40"? [Re: Reddy45]
Papa Bear Online   content


Registered: 08/11/05
Posts: 7046
Loc: Leamington, ON, Canada ..... r...
Are you looking for a JASO MA/MB (shared sump) mix??
_________________________
2016 Dodge GC Deep Cherry
2013 SYM Wolf Classic
2011 Suzuki S40
https://www.hogsforhospice.com/

Friend of Bill W. since '89


Top
#4693612 - 03/13/18 04:04 PM Re: Rotella T4 15W40 + T6 5W40 = "T5 10W40"? [Re: Reddy45]
Brian553 Offline


Registered: 01/30/18
Posts: 59
Loc: Central Texas







This makes a key assumption to me though. The main one being: does the mixing calculation apply for multigrade oils, or just monogrades? Dunno. The mixture looks good, but a good question is: what is your personal minimum riding temperature?
_________________________
2008 Toyota Rav4 V6 (10w30 Valvoline HM/ML ~ 4.5k oci)
2014 Tiger 800 XC

"The carpenter's rule is 'measure twice, cut once.'" -Stephen Covey

Top
#4693664 - 03/13/18 04:57 PM Re: Rotella T4 15W40 + T6 5W40 = "T5 10W40"? [Re: Brian553]
CleverUserName Offline


Registered: 11/08/17
Posts: 177
Loc: California
Originally Posted By: Brian553

This makes a key assumption to me though. The main one being: does the mixing calculation apply for multigrade oils, or just monogrades? Dunno. The mixture looks good, but a good question is: what is your personal minimum riding temperature?


I just did an experiment with mixing multigrades oils of the same formulation, and I can say that the Widman Calculator is very close to what viscosity was measured @ 40c & 100c by OAI.

https://www.bobistheoilguy.com/forums/ub...tra#Post4688436


Edited by CleverUserName (03/13/18 05:01 PM)

Top