Recent Topics
'98 Mercedes E300TD Rotella T5 10W-30 5k miles
by KenO
06/19/18 04:35 PM
Premium guard oil filters
by Jaha24k
06/19/18 04:09 PM
76 super motor oil- synthetic blend 5w-30
by Jaha24k
06/19/18 04:07 PM
Who makes the Mopar 5038041AA filter?
by Quattro Pete
06/19/18 03:55 PM
Ruger Mini-14, yay or nay?
by 28oz
06/19/18 03:51 PM
USPS long long delivery to BlackStone Labs
by Pajero
06/19/18 02:58 PM
House A.c. vent leaking water
by motor_oil_madman
06/19/18 02:55 PM
"synthetic" gear oil and LS additive?
by nthach
06/19/18 01:54 PM
Supertech wix ST8 5514 miles
by jakewells
06/19/18 01:38 PM
Review - Sonax Spray and Seal.
by PimTac
06/19/18 01:36 PM
Lets Get a True Group 4 Sticky going!
by KMJ1992
06/19/18 12:17 PM
Rotella 10W40
by jakewells
06/19/18 10:43 AM
Extend WiFi Range at the Laptop?
by clarkflower
06/19/18 10:40 AM
Silicone containing waxes
by mjoekingz28
06/19/18 09:44 AM
Matrix totaled
by circuitsmith
06/19/18 08:32 AM
Door rust problems
by Dave Sherman
06/19/18 07:51 AM
2016 Honda Civic problems
by dbias
06/19/18 07:39 AM
Royal purple 75-140 in a subaru rear
by 91camarosRS
06/19/18 07:32 AM
OCI. With short trips. Nissan 4 liter
by Gawardawg
06/19/18 06:52 AM
Approach Watching on the Beach @ St Maarten ...
by LoneRanger
06/19/18 06:41 AM
Newest Members
JustaDude, 3horseman, Firedog45, WtsTacoma01, Orion62
65265 Registered Users
Who's Online
99 registered (46Harry, 28oz, 2oldtommy, 330indy, 87sammy, 9 invisible), 1559 Guests and 41 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
65265 Members
67 Forums
285605 Topics
4766330 Posts

Max Online: 3590 @ 01/24/17 08:07 PM
Donate to BITOG
Page 1 of 2 1 2 >
Topic Options
#4559591 - 10/30/17 07:29 PM Red Line 0W40 or 10W40 for winter use?
uzun Offline


Registered: 10/15/05
Posts: 31
Loc: VA
Hi guys,

My 2015 KTM Super Duke R is due for an oil change soon. The owner's manual recommends the Motorex 10W-50 as long as the ambient temp is above 32F, but this oil has the bad reputation of shearing down too much in KTMs. With the winter coming, I am considering the following 0W40 and 10W40 oils from Red Line:

https://www.redlineoil.com/0w40-powersports-oil

https://www.redlineoil.com/10w40-motorcycle-oil

I normally ride in the winter as long as the ambient temp is above 40F. It seems the 0W40 would provide better cold start protection. Interestingly, its 100-degree Celcius viscosity is higher than that of the 10W40 according to the info on the website. So it's a pretty thick 40W at operating temp, which is also desirable given that the manual recommends a 50W oil above 32F ambient.

Which one do you think would be the better choice for winter use?

Top
#4559600 - 10/30/17 07:35 PM Re: Red Line 0W40 or 10W40 for winter use? [Re: uzun]
CT8 Online   content


Registered: 10/09/14
Posts: 10938
Loc: Idaho
10W-40
_________________________
"Don't let your preconceived notions get in the way of facts."
Geoff Metcalf

Top
#4559614 - 10/30/17 07:43 PM Re: Red Line 0W40 or 10W40 for winter use? [Re: uzun]
RichardS Offline


Registered: 01/14/17
Posts: 616
Loc: Melbourne, Florida
Is one known to be more shear stable than the other?

For my own curiosity, what does the suggested 10w-50 swear down to during a usual OCI?

All things the same, I'd go for the 0w just because of the lower cold temp performance.
_________________________
2008 Dodge Caliber SE 2.0 117k
4qt Imeditsu 0w-20, 1/2qt Mobil SS 5w-20 Fram HM

2003 Buick Century 107k
4.5q Havoline 5w-30 HM Fram XG

Top
#4559617 - 10/30/17 07:45 PM Re: Red Line 0W40 or 10W40 for winter use? [Re: uzun]
BrocLuno Offline


Registered: 09/06/15
Posts: 5511
Loc: Kalifornia Kollective
Yeah, it's all about the shear stability. Read up and pick that one smile
_________________________
Formerly in marine engineering. In an earlier life I owned my own petroleum tank truck, and hauled for the majors and independent's.

Top
#4559619 - 10/30/17 07:46 PM Re: Red Line 0W40 or 10W40 for winter use? [Re: uzun]
JimPghPA Offline


Registered: 08/22/09
Posts: 3859
Loc: Pittsburgh,PA U.S.A.
0W
_________________________
Boy will I be happy when ALL vehicles on public roads are autonomous.


JimPghPa


Top
#4559640 - 10/30/17 08:00 PM Re: Red Line 0W40 or 10W40 for winter use? [Re: uzun]
uzun Offline


Registered: 10/15/05
Posts: 31
Loc: VA
Thanks for the suggestions. I need to find out more about the shear stability of these two oils.

RichardS: Motorex 10W-50 is known to shear down to 30 weight in shared sumps!

Top
#4559759 - 10/30/17 11:51 PM Re: Red Line 0W40 or 10W40 for winter use? [Re: uzun]
David_g Offline


Registered: 07/22/11
Posts: 143
Loc: California
Originally Posted By: uzun
I normally ride in the winter as long as the ambient temp is above 40F.

...that the manual recommends a 50W oil above 32F ambient.

Which one do you think would be the better choice for winter use?

I would go with KTM on this one and choose an xW50, and not one of the xW40s.
_________________________
2007 BMW R1200R (Mobil 1 15W50, Red Line Shockproof Heavy, Supertech 75W90)
2016 Honda Africa Twin DCT (Motul 5100 10W40)

Top
#4559785 - 10/31/17 02:08 AM Re: Red Line 0W40 or 10W40 for winter use? [Re: uzun]
Char Baby Offline


Registered: 05/25/05
Posts: 10018
Loc: ROCHESTER, NY
I would say, 0W for cold start up.
_________________________
"Retired"
'80 Firebird FORMULA V8/4bbl-purchased "NEW"
'06 Mazda 3i 2.0L
'15 Nissan Altima 2.5 SV

Top
#4559802 - 10/31/17 04:40 AM Re: Red Line 0W40 or 10W40 for winter use? [Re: uzun]
Olas Offline


Registered: 12/11/13
Posts: 3933
Loc: Manchester, England
10w is good down to -5f. Will you be riding when it gets that cold?

Redline does not shear on a shared sump - at least it didn't used to, before the buyout & reformulation.
_________________________
Cable ties should hold it

Top
#4559805 - 10/31/17 04:45 AM Re: Red Line 0W40 or 10W40 for winter use? [Re: uzun]
RichardS Offline


Registered: 01/14/17
Posts: 616
Loc: Melbourne, Florida
Uzun,
That's a heck of a loss in viscosity!
_________________________
2008 Dodge Caliber SE 2.0 117k
4qt Imeditsu 0w-20, 1/2qt Mobil SS 5w-20 Fram HM

2003 Buick Century 107k
4.5q Havoline 5w-30 HM Fram XG

Top
#4559850 - 10/31/17 06:32 AM Re: Red Line 0W40 or 10W40 for winter use? [Re: uzun]
Virtus_Probi Offline


Registered: 06/25/15
Posts: 3970
Loc: New England
If you're only going to be riding above 40F, that 0W40 probably isn't going to buy you anything over the 10W40.
I'd guess the 10W40 is going to be more shear stable and would be a better choice as a result.
_________________________
2014 Forester XT, 80500 miles
Last Change;
Valvoline Full Synthetic 5W30 d1G2
Tokyo Roki 15208AA170 filter

Top
#4559860 - 10/31/17 06:41 AM Re: Red Line 0W40 or 10W40 for winter use? [Re: uzun]
Dyusik Offline


Registered: 09/26/14
Posts: 1980
Loc: US-WA
There is nothing 10w, 15w or a 20w can't handle at 40F...
_________________________
95 Cherokee 190K DELO 10W30,XG8
07 IS250 97K FB ?w??,FULL
04 YZF-R1 19K DELO 15w40,XG7317
99 HD XL1200S 18K 76 20w50,1515
14 RX450h 30k PP 0w20,NAPAG

Top
#4559941 - 10/31/17 08:32 AM Re: Red Line 0W40 or 10W40 for winter use? [Re: JimPghPA]
CT8 Online   content


Registered: 10/09/14
Posts: 10938
Loc: Idaho
Originally Posted By: JimPghPA
0W
To high VII as well as the 0W is not needed.
_________________________
"Don't let your preconceived notions get in the way of facts."
Geoff Metcalf

Top
#4559946 - 10/31/17 08:36 AM Re: Red Line 0W40 or 10W40 for winter use? [Re: uzun]
bigjl Offline


Registered: 09/06/12
Posts: 2220
Loc: London, England
Personally i would stick with 10w50
_________________________
16 S350d LWB 25k Mobil Super 3000 XE 5w30
17 Smart ForFour Auto 6.5k Mobil 1 0w40 FS

Top
#4560061 - 10/31/17 10:26 AM Re: Red Line 0W40 or 10W40 for winter use? [Re: uzun]
jeff78 Offline


Registered: 06/06/17
Posts: 129
Loc: New York
If you're not going to be starting the bike too far below freezing, even a monograde 40 will pump just fine, and it will have the advantage of zero shear across any OCI you dare. My go-to monograde is Valvoline VR1 SAE 40.

But if I were forced to choose between those two Red Line grades, I'd pick the 10W-40 in spite of the lower 100C viscosity if only because the HTHS for the 0W-40 is unknown. Most here would regard HTHS viscosity as being more relevant/important. Also, the very high viscosity index of the 0W-40 (221!) and higher NOACK hints at there being more (shearable) VII's than the 10W-40. But that's just my guess. You can always ask them what the 0W-40's HTHS is.


Top
Page 1 of 2 1 2 >