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Re: latest choices of diesel oils for common sump bikes [Re: kmrcstintn] #5077797 04/17/19 12:03 PM
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Brian553 Offline
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Delvac 1300........Valvoline Maxlife FS ATF........Liquid Wrench
Mobil 1 HM..........Valvoline Asian AF..................Berryman's B12



Re: latest choices of diesel oils for common sump bikes [Re: kmrcstintn] #5083157 04/22/19 07:19 PM
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Bonz Offline
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Just curious, no heartburn intended so please take this as honest inquiry on my part.

What is the reason/rationale for mixing in Amsoil 15w40 syn in a low rpm 250cc twin (i.e. long stroke) that is air cooled (will contaminate oil sooner rather than later with blow-by because of the looser tolerances). What are you trying to improve on with that mix, in this engine with a 2000 mile OCI? What does Yamaha spec for an OCI?

Run the 10w40 Dino and never look back.

The scooter I believe has an 1800 mile OCI, why almost 2X as often as recommended?

Re: latest choices of diesel oils for common sump bikes [Re: kmrcstintn] #5083678 04/23/19 10:50 AM
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webfors Offline
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Currently have a stash of Valvoline conventional motorcycle oil in 10w40 and 20w50. Just put the 20w50 in and love the way that oil "feels". Shifting is great, the bike doesn't seem to mind lugging as much. When I ran that oil last summer shifting stayed consistent for the entire OCI. It's one [censored] of a stout oil with a 20cst viscosity rating. If it shears 25% I'm still running a good thick 40 weight. Most oils degrade shifting over time, most likely due to shearing below a certain viscosity.

The new T6 15w40 is intriguing. Looking forward to seeing UOAs on this oil and whether it holds viscosity. The 5w40 is a shearing monster, hence why it starts to feel "notchy" after a couple K.


17 Cadillac ATS 2.0T, Edge D1G2 5w30, Champion COS10590
17 Dodge GC, VWB 5w30, Mopar MO-349
18 DL1000XT, Valvoline Dino 20w50, Suzuki OEM OF
Small engines; RT5 10w30
Re: latest choices of diesel oils for common sump bikes [Re: kmrcstintn] #5084273 04/23/19 10:08 PM
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beanoil Offline
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I'm with Bonz... I don't see the logic either.
Run the 10w40 in the VStar, and for your Buddy, you need look no further than VR-1 20w50.
Valvoline is on sale this month at NAPA.
Your not gaining a thing by blending AMSOIL and anything.

Re: latest choices of diesel oils for common sump bikes [Re: beanoil] #5084446 04/24/19 05:57 AM
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Diesel12 Offline
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Originally Posted by beanoil
Originally Posted by Diesel12
Rotella T6 5w-40 is available everywhere and its cost effective. Schaeffer makes a good V-twin oil for bikes with wet clutch.
https://www.schaefferoil.com/vtwin-oil.html Seems to be really popular on harley forums.

No and no.
5w40 in a common sump has a tendency to shear rapidly, and the Schaeffer is not for clutches with fiber plates. It is popular on Harley forums because they are not shared sump bikes (for the most part).
Rotella 15w40 is probably the most popular cheerleader from the diesel side of oils. Valvoline Premium Blue is good but I found a different clutch feel with it. Grabby. Someone will chime in about Delvac... I don't care for it all after the CK-4 reformulation. But if that's all there was... fill and ride.
Valvoline MC oil is effective and cheap.
There are a couple of folks here that like VR-1 straight 40 weight in common sump bikes. No shear, very good performance. Currently 4.99 a quart at NAPA. That will be the next fill in my out of warranty Can-Am Spyder (dry sump, hydraulic shift, wet clutch).



Did you even read the description?
[Linked Image]


Also to you VR1 recommendation again if you read it clearly states VR1 is not recommended for Wet Clutches. [Linked Image]


1998 Dodge Neon-Rebuilt 2.4L-Schaeffer 10w-30
2014 Dodge Durango 3.6, 66K- Schaeffer 10w-30
2002 Ram 2500 Cummins 125K- Schaeffer 5w-40
2008 Dodge Avenger 232K Schaeffer 10w-30
Re: latest choices of diesel oils for common sump bikes [Re: Diesel12] #5085164 04/24/19 06:34 PM
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Garak Offline
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I shouldn't think so. As much as the viscosity and ZDDP levels would be fine, racing oils are highly friction modified.


Plain, simple Garak.

2008 Infiniti G37 - Shell ROTELLA T6 Multi-Vehicle 5w-30, Wix 57356
1984 F-150 4.9L - Quaker State GB 10w-30, Wix 51515
Re: latest choices of diesel oils for common sump bikes [Re: Bonz] #5085438 04/24/19 11:54 PM
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kmrcstintn Offline OP
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Originally Posted by Bonz
Just curious, no heartburn intended so please take this as honest inquiry on my part.

What is the reason/rationale for mixing in Amsoil 15w40 syn in a low rpm 250cc twin (i.e. long stroke) that is air cooled (will contaminate oil sooner rather than later with blow-by because of the looser tolerances). What are you trying to improve on with that mix, in this engine with a 2000 mile OCI? What does Yamaha spec for an OCI?

Run the 10w40 Dino and never look back.

The scooter I believe has an 1800 mile OCI, why almost 2X as often as recommended?


well...I snagged the Amsoil from a local place that takes care of fire, ems, police vehicles on different occasions for slightly less than $4/qt to slightly more than $5/qt (some goofy billing quirk at the register in their firearms dept)...I got it so I might as well use it to 'beef up' whatever I use and make a synthetic blend; the V Star 250 is oil/filter every 3k & the Buddy 125 is every 1.8k for oil & every 3.6k for filter; I always change oil/filter early on 2 wheeled death machines...I do this to have a higher chance of keeping oil in proper viscosity range and clean out engine-transmission-clutch gunk sooner; my car never goes 5k intervals either; just who I am I guess


'15 Jeep Patriot Sport (2.4L 4-cyl), '13 Genuine Buddy 125 (125cc air-cooled thumper), '14 Yamaha V Star 250 (250cc air cooled v-twin)
Re: latest choices of diesel oils for common sump bikes [Re: Diesel12] #5085721 04/25/19 08:19 AM
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Truckedup Offline
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Originally Posted by Diesel12
Originally Posted by beanoil
[quote=Diesel12]
Valvoline MC oil is effective and cheap.
There are a couple of folks here that like VR-1 straight 40 weight in common sump bikes. No shear, very good performance. Currently 4.99 a quart at NAPA. That will be the next fill in my out of warranty Can-Am Spyder (dry sump, hydraulic shift, wet clutch).



Did you even read the description?
[Linked Image]


Also to you VR1 recommendation again if you read it clearly states VR1 is not recommended for Wet Clutches. [Linked Image]


Myself and some others I know run Valvoline VR1 20-50 in wet clutch bikes with no problems....I believe it may not work in every bike and might be a matter of clutch lining material. Valvoline issues the warning to play it safe.


World's second fastest vintage Triumph 650, 133 MPH
Re: latest choices of diesel oils for common sump bikes [Re: Truckedup] #5086048 04/25/19 01:55 PM
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ZeeOSix Offline
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Originally Posted by Truckedup
Myself and some others I know run Valvoline VR1 20-50 in wet clutch bikes with no problems....I believe it may not work in every bike and might be a matter of clutch lining material. Valvoline issues the warning to play it safe.


Most of the high performance bikes have a clutch design that locks the plates tighter as the engine load/torque increases through the clutch.

Re: latest choices of diesel oils for common sump bikes [Re: ZeeOSix] #5086347 04/25/19 06:29 PM
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Originally Posted by ZeeOSix
Originally Posted by Truckedup
Myself and some others I know run Valvoline VR1 20-50 in wet clutch bikes with no problems....I believe it may not work in every bike and might be a matter of clutch lining material. Valvoline issues the warning to play it safe.


Most of the high performance bikes have a clutch design that locks the plates tighter as the engine load/torque increases through the clutch.


I'm talking about older bikes with no centrifugal locking feature for the clutch plates...


World's second fastest vintage Triumph 650, 133 MPH
Re: latest choices of diesel oils for common sump bikes [Re: kmrcstintn] #5089671 04/28/19 04:09 PM
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kmrcstintn Offline OP
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*** UPDATE ***

got tired of chasing my tail dealing with walmart online ordering to get more valvoline atv oil in 10w-40 to build a stash...orders not getting filled, cancellations not going thru, etc; just returned the original purchase to walmart and bought a gallon jug of supertech 15w-40 for $9.64...I'll add a few more jugs as pay checks allow


'15 Jeep Patriot Sport (2.4L 4-cyl), '13 Genuine Buddy 125 (125cc air-cooled thumper), '14 Yamaha V Star 250 (250cc air cooled v-twin)
Re: latest choices of diesel oils for common sump bikes [Re: kmrcstintn] #5089721 04/28/19 05:25 PM
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Originally Posted by kmrcstintn
*** UPDATE ***

got tired of chasing my tail dealing with walmart online ordering to get more valvoline atv oil in 10w-40 to build a stash...orders not getting filled, cancellations not going thru, etc; just returned the original purchase to walmart and bought a gallon jug of supertech 15w-40 for $9.64...I'll add a few more jugs as pay checks allow

I doubt you would be able to tell any difference between the Valvoline and ST, aside for a few more bucks for gas.


6mo:'18 Santa Fe:PP 10W-30/OEM, '18 Soul:Synpower 5W-30/PG, '10 Santa Fe:Synpower5w-30/D+, '04 F150/Magnatec 10w-30/ST
1yr: '12 xB:M1EP 0W-20/CQB, '02 F150:Magnatec 5W-20/D+, '94 VT1100:Peak 15W-40/D+
Re: latest choices of diesel oils for common sump bikes [Re: kmrcstintn] #5133486 06/13/19 05:49 PM
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