Car oil vs motorcycle oil?

Start oil threads here so they can be ignored and/or ridiculed by most of us (except for those hardcore few that live for that kinda stuff).
Forum rules
Here's the place for you to debate what oil is best. Post your oil related topics her so we don't clutter up the other sections. Most people avoid oil threads like the plague.
User avatar
BikerMage
Party Member
Party Member
Posts: 176
Joined: Fri Jun 12, 2015 6:19 am
Location: Raleigh, NC

Car oil vs motorcycle oil?

Postby BikerMage » Thu Nov 05, 2015 12:20 pm

Would it be safe to use normal car oil in these Urals? Does anyone?

The reading I've done on the subject tells me that friction modifiers in car oil don't play well with wet clutches, hence the biggest difference between oils. But if the Ural is a dry clutch, that shouldn't matter, right? Of course, then it becomes a question with the transmission, and I have 0 experience with a separate transmission.

Maybe someone here can enlighten me.
Previous bikes:
1981 Yamaha XS1100 (full rebuild, really fun)
2005 Suzuki Katana (we all make the crotch rocket mistake once, right?)
1982 Yamaha XJ750 (lucky enough to have my wife buy me a bike)
1984 Honda Goldwing

rivers
Hero of the Soviet Union - 2017
Hero of the Soviet Union - 2017
Posts: 8138
Joined: Sat Jul 24, 2010 10:04 pm
Location: west WA

Re: Car oil vs motorcycle oil?

Postby rivers » Thu Nov 05, 2015 12:43 pm

Car oil is fine. Just use a quality brand name oil that meets required specs. FWIW I run Castrol 20w-50 in Urals and many other bikes. Never an issue with the motor or trans.
Joe
014 GU
"I'm lost but I'm making good time."

User avatar
MartyL
Benevolent Emperor
Benevolent Emperor
Posts: 8556
Joined: Thu Jul 19, 2007 1:16 pm
Location: Winter Park, Fl.

Re: Car oil vs motorcycle oil?

Postby MartyL » Thu Nov 05, 2015 12:50 pm

NO!!! Do not use car oil in a motorcycle... Don't screw around with this....
2010 Gear Up
1976 Yamaha XS650C
2015 Yamaha FJ09
Peace.... God Bless our brave soldiers defending our freedom. God Bless America!
As I get older, I see the wisdom in Hannibal Lecter......
Ladies,Do your part! Prevent MSB often! Save mankind!!!

User avatar
Wildhorse Cafe
Hero of the Soviet Union - 2017
Hero of the Soviet Union - 2017
Posts: 1245
Joined: Mon Sep 08, 2014 5:28 pm
Location: King City, California

Re: Car oil vs motorcycle oil?

Postby Wildhorse Cafe » Thu Nov 05, 2015 12:59 pm

Why take the risk?
2011 Patrol Higgs Bison Super Collider formally known as the Orange and Silver Pumpkin Coach
2006 Shinny Black, Tourist, Tatyanna

When you set out on your journey to Ithaca
pray the road is long , full of adventure, full of knowledge
not expecting that Ithaca will offer you riches
Ithaca has given you the beautiful voyage

C.P. Cavafy

barnone
Order of Suvarov
Order of Suvarov
Posts: 3357
Joined: Wed May 12, 2010 4:43 pm

Re: Car oil vs motorcycle oil?

Postby barnone » Thu Nov 05, 2015 1:46 pm

What do you run in a Volkswagen Beetle? Motorcycle oil?

User avatar
tonered
Order of Suvarov
Order of Suvarov
Posts: 3085
Joined: Thu May 02, 2013 12:01 pm
Location: Lynnwood, WA

Re: Car oil vs motorcycle oil?

Postby tonered » Thu Nov 05, 2015 2:00 pm

BikerMage wrote:Would it be safe to use normal car oil in these Urals? Does anyone?

The reading I've done on the subject tells me that friction modifiers in car oil don't play well with wet clutches, hence the biggest difference between oils. But if the Ural is a dry clutch, that shouldn't matter, right? Of course, then it becomes a question with the transmission, and I have 0 experience with a separate transmission.

Maybe someone here can enlighten me.


Ever since I started riding in 2006, I have always used synthetic automotive oils. I even once used a 5w oil with friction modifiers in a wet clutch. Not a single problem.

Until recently, my drug of choice was Mobil1 15w-50, bought in a 5qt jug for a bit over $20. A few years back after many good reports, I've switched to Rotella T6 5w-40, a bit over $20 for a 4qt jug. I use it in everything, our cars and my bikes. I transitioned the Ural to T6 after the warranty expired.

The big difference between "motorcycle" oils and typical light weight automotive oils is the additive package, where with the excellent metallurgy of new motors, the additive package has been reduced for environmental reasons. M1 and T6 are still classified as 'diesel oils' and T6 has the Japanese JASO rating for motorcycles. Motorcycle and diesel oil have a bigger additive package, esp in the zinc department (ZDDP) for flat tappet protection.

I prefer full synthetics oils to resist sludging and extreme heat, esp in m/c motors.

It makes me laugh when folks cough up almost $20 for a single quart of motorcycle oil. Research at bobistheoilguy.com shows (or at least used to / I haven't looked in a couple years) that oil analyses are not much different between diesel, heavy weight automotive, and motorcycle oils.

Have a good one.
tony b
Lynnwood, WA
2013 GearUp (Taildragger)
2001 Duc ST4 (Thumper)

User avatar
BillyG
Thread Killer
Thread Killer
Posts: 2984
Joined: Wed Jul 18, 2007 2:05 pm
Location: NSB, FL
Contact:

Re: Car oil vs motorcycle oil?

Postby BillyG » Thu Nov 05, 2015 2:42 pm

300K+ km on house brand automotive 20w/50 oil. Nuff said.
Bill Glaser
2002 Ural Patrol "CYKA"
300,000 km's since May 1st 2002
The "Unofficial Ural Service Manual" can be viewed at: http://www.myural.com

Leftka
Order of Suvarov
Order of Suvarov
Posts: 3705
Joined: Sat Jul 21, 2012 9:34 am
Location: Naples, Florida

Re: Car oil vs motorcycle oil?

Postby Leftka » Thu Nov 05, 2015 4:58 pm

Your rig...do what you want...you'll get a lot of different answers here. I always used royal purple 20x/50 synthetic mc oil in the engine. It has additives that mc engines need, synthetics handle the heat better and the independent tests I read convinced me it was superior at protecting the moving parts. In the tranny I always used redline shockproof lightweight...better that motor oil and helped my tranny shift better. FD I always use redline shockproof heavy. Never had a FD issue, never had any engine problems and tranny shifts as smooth as a Russian gear box could be expected. Each of those fluid are very different in color too...can help you pinpoint a leak...if your rig should ever decide to mark its territory...all this IMHO.
Leftka
Naples, FL
2012 "Red October" Tourist, Ursula
128/40 Jets
Harmonized at 10" hg
Dynojet DNO106 Needles, 3rd Notch From Bottom
Leftka 3, ALLuminum Custom Airbox
K & N MG 200 Filter Element
7/64" Drilled Carb Slides
Power Arc Ignition with VOES Advance/Retard
Mod Top Mufflers on Stock Headers
Parabellum Scout Fairing
Retro Lighting
Left Hand Throttle, Front Brake and Clutch

Image

User avatar
repeat offender
Party Member
Party Member
Posts: 161
Joined: Sat Jul 06, 2013 7:51 pm
Location: Lake of Egypt, Illinois

Re: Car oil vs motorcycle oil?

Postby repeat offender » Thu Nov 05, 2015 5:49 pm

20w-50 regular dino works fine......The motorcycle oil ain't gonna hurt if you can get it. I use that in the Beemer. Urals are not so fussy.When in doubt, go to the manual. :wink:
George

1997 Valkyrie with Sidecar
Former rides...
'37 W
48 FL
57 G
53 K
77 FLH
62 FL
73 G
71 XL
07 PATROL
77 HONDA 500
1988 BMW R100GS.

User avatar
BikerMage
Party Member
Party Member
Posts: 176
Joined: Fri Jun 12, 2015 6:19 am
Location: Raleigh, NC

Re: Car oil vs motorcycle oil?

Postby BikerMage » Thu Nov 05, 2015 6:09 pm

Thanks for all of the advice. I intend to use 20w-50 motorcycle oil, it was more of a curiosity than something I would actually do.
Previous bikes:
1981 Yamaha XS1100 (full rebuild, really fun)
2005 Suzuki Katana (we all make the crotch rocket mistake once, right?)
1982 Yamaha XJ750 (lucky enough to have my wife buy me a bike)
1984 Honda Goldwing

rivers
Hero of the Soviet Union - 2017
Hero of the Soviet Union - 2017
Posts: 8138
Joined: Sat Jul 24, 2010 10:04 pm
Location: west WA

Re: Car oil vs motorcycle oil?

Postby rivers » Thu Nov 05, 2015 6:59 pm

That'll work, if specifically badged 'motorcycle' oil is your thing and makes you feel warn-n-fuzzy. My standard 'what oil' reply is: "yes by all means use oil in the motor" Keep it clean and up to proper level...you're golden. :thumbsup:
Joe
014 GU
"I'm lost but I'm making good time."

User avatar
Tin Man
Commissar
Commissar
Posts: 10023
Joined: Mon Nov 19, 2007 2:15 am
Location: Johnson County, Texas, USA

Re: Car oil vs motorcycle oil?

Postby Tin Man » Thu Nov 05, 2015 10:29 pm

To answer the title question...............Yes!
Mike
2007 GearUp (Arctic #1)
130/45 jets, KTM rock solid mirrors, Delaware Dave's outstanding trunk lock, Mr. Cob's most excellent skid plate, Cycra Probend smashproof hand guards, Duro strong like bull 307's, RotoPax damn near bulletproof fuel cans, MKIII all but water proof air box and Dimples super duper magnetic drain plugs all around...oh yeah, and a manual fuel petcock.

.........if you see something that needs doing, just do it........

User avatar
chaos2
Hero of the Soviet Union - 2017
Hero of the Soviet Union - 2017
Posts: 3908
Joined: Sun Apr 29, 2012 12:58 am
Location: sw ohio

Re: Car oil vs motorcycle oil?

Postby chaos2 » Thu Nov 05, 2015 11:29 pm

ever notice MC spec oils usually cost more? I'm guessing it's more marketing than ingredients. And having a dry clutch negates the main reason for it. My step-son's Honda does fine on regular dino, so even that may not be that big of deal.
past afflictions include TR motocars and bikes, R60/2 & a R65, MGs, and a Citroen.
Now a 2012 FF GU and an 87 K75s
dual K&N cones on PVC intake, 40/137.5
Raceway needles
Modtop exhaust
$29 VW Hydraulic steering dampener

User avatar
puttaround
Comrade Colonel
Comrade Colonel
Posts: 325
Joined: Wed Jun 18, 2014 9:47 pm
Location: St Pete Florida

Re: Car oil vs motorcycle oil?

Postby puttaround » Fri Nov 06, 2015 1:53 am

:lurker:
2001 Bavarian Classic--gone but not forgotten
1975 Yamaha RS100 "The Eternal Project"
2014 Maddog "chuckus" scooter

"The past is a foreign country: They do things differently there." --L. P. Hartley
Ти́ше е́дешь -- да́льше бу́дешь. --Ride slower, you'll get further. (Russian Proverb)

camo
Comrade
Comrade
Posts: 67
Joined: Thu Jan 01, 2015 5:11 am
Location: Brisvegas

Re: Car oil vs motorcycle oil?

Postby camo » Fri Nov 06, 2015 4:29 am

Ive heard we should use mineral oil in the engine due to the ball bearing crank ?
2010 Red October limited edition 1 of 4 in AU
2005 DL650
2001 GL1800
2000 TL1000S
1998 TL1000R
1998 GSX750R


Return to “Oil Threads”

Who is online

Users browsing this forum: No registered users and 3 guests