Zongshen 250cc watercooled engine oil

Sanabil · 05-28-2019, 07:21 AM

Hi everyone!
I am new to forums and need some information regarding engine oil.
I installed a zongshen 250cc engine with 4 valve 5 speed OHC engine.
My technician recommended 20W50 which is fine but it is only API SG SEA?
It says on box not recommended for motorcycle engines, but many says its best for this engine?
What about JASO MA2 certified oils? I am confused.

For reference this is my engine but mine is black painted this is silver.
https://www.alibaba.com/product-deta...20ba24cfwpYWKc

Can anyone explain? because i think it has wet integrated clutch which non JASO MA oil can ruin? Any help will be appreciated
Thanks

**JerryHawk250** · 05-28-2019, 07:35 AM

Only run oil designed for wet clutch. Lots of people here run Rotella t4 or T6 with no problem. I run Quicksilver 20/50 full synthetic. Don't run synthetic until the engine is fully broke in though.

Sanabil · 05-28-2019, 08:35 AM

Ok, my engine running is complete. Should i drain the current oil it is 200km used only but it is for cars . I can buy 20w50 for motorcycle of some good brand and start using it, right?

**JerryHawk250** · 05-28-2019, 09:12 AM

Quote:

Originally Posted by Sanabil

Ok, my engine running is complete. Should i drain the current oil it is 200km used only but it is for cars . I can buy 20w50 for motorcycle of some good brand and start using it, right?

Yes. You should be okay. Just hold off on using synthetic until get 500-600 miles.

Sanabil · 05-28-2019, 09:15 AM

Quote:

Originally Posted by JerryHawk250

Yes. You should be okay. Just hold off on using synthetic until get 500-600 miles.

Ok thanks 😊
Just curious that why would people still recommend car oil for motorcycle with wet clutch.

Sanabil · 05-29-2019, 12:43 AM

Is API SG SAE oil ok for wet clutch motorcyle engine ? compared to JASO MA2?
Thanks

Azhule · 05-30-2019, 10:16 AM

Most 10w40, 15w40, and 20w50 oils will work just fine even if they didn't go through the "wet clutch" JASO tests... Rotella and or Super Tech 15w40 is inexpensive and works great in most motorcycle/atv engines, usually costs under $14 for a gallon for those 2 brands

Just do not use 0w20, 5w20, 0w30, and 5w30... basically any oil with the "Energy Conserving Star" should be avoided in a "wet clutch" engine/transmission

Sanabil · 06-08-2019, 06:18 PM

Thanks for your answers, i changed my oil flushed the old oil and put liqui moly 20w50 4t street and was expecting better results but bike now feels sluggish and is accelerating slowly. Engine temperature remains normal but bike is definitely not accelerating like it use to. I was previously using havoline 20w50 sae api sg although it says not recommended for motorcycle engine ,the bike accelerated very well , i could feel the power it felt that engine was running openly, now it feels cramped and suffocated. Any ideas? Thanks

Forklift352 · 08-23-2019, 03:53 PM

Clean your air filter and carb.

pete · 08-24-2019, 08:07 PM

some oils are like that.... replace it..
My choice is always Motul 5100
also sold as Yamalube..
any oil with a JASO-MA rating is fine..
it not so much the oil but how often you change
it that is the main factor..

.

..

05-28-2019, 07:21 AM	#1
Sanabil Join Date: May 2019 Posts: 5	Zongshen 250cc watercooled engine oil Hi everyone! I am new to forums and need some information regarding engine oil. I installed a zongshen 250cc engine with 4 valve 5 speed OHC engine. My technician recommended 20W50 which is fine but it is only API SG SEA? It says on box not recommended for motorcycle engines, but many says its best for this engine? What about JASO MA2 certified oils? I am confused. For reference this is my engine but mine is black painted this is silver. https://www.alibaba.com/product-deta...20ba24cfwpYWKc Can anyone explain? because i think it has wet integrated clutch which non JASO MA oil can ruin? Any help will be appreciated Thanks
	0

05-28-2019, 07:35 AM	#2
JerryHawk250 Moderator Join Date: Oct 2016 Location: Houma, La. Posts: 11,561	Only run oil designed for wet clutch. Lots of people here run Rotella t4 or T6 with no problem. I run Quicksilver 20/50 full synthetic. Don't run synthetic until the engine is fully broke in though. __________________ 2023 Lifan Lycan 250 Chopper 2023 Venom Evader 2022 Lifan KPX250 2020 Kawasaki Vulcan S 2004 Honda ST 1300 2016 Black Hawk 250 (sold) Keihin PE30 carb,125 main,38 slow.Pod filter,ported & decked head 10:1 CR,Direct Ignition Coil,15/40Sprockets,NGK DPR8EIX-9,De-Cat,Dual Oil Cooler,Digital Cluster 2016 Cazador180 XL 2014 Coolster150 JerryHawk250.com My YouTube Channel
	0

05-30-2019, 10:16 AM	#7
Azhule Join Date: Dec 2015 Location: CO Posts: 1,525	Most 10w40, 15w40, and 20w50 oils will work just fine even if they didn't go through the "wet clutch" JASO tests... Rotella and or Super Tech 15w40 is inexpensive and works great in most motorcycle/atv engines, usually costs under $14 for a gallon for those 2 brands Just do not use 0w20, 5w20, 0w30, and 5w30... basically any oil with the "Energy Conserving Star" should be avoided in a "wet clutch" engine/transmission __________________ "Think as you like... but this self proclaimed Professor is always right" - Buckshot "You never know what someone is hiding beneath their smile..." - NinjaTom - R.I.P.
	2

08-23-2019, 03:53 PM	#9
Forklift352 Join Date: Sep 2008 Location: Salem ,Oregon Posts: 121	Clean your air filter and carb. __________________ <div><em>Black Dragon</em></div><br />
	0

08-24-2019, 08:07 PM	#10
pete Join Date: Jan 2012 Location: ChCh , NZ Posts: 2,261	some oils are like that.... replace it.. My choice is always Motul 5100 also sold as Yamalube.. any oil with a JASO-MA rating is fine.. it not so much the oil but how often you change it that is the main factor.. . .. __________________ 09 XT660R ... 06 TTR250 ... 80 Montesa H6 125 Enduro... 77 Montesa Cota 348 MRR "Malcom Rathnell Replica"... Current resto projects.. 81 Honda CT110... 80 Kawasaki KL250A1... 11 Husaburg TE125 enduro... "sold" along with another 31... Lifan 125 Pitbike.. "stolen" ... KIWI BIKER FORUM...... http://www.kiwibiker.co.nz/forums/content.php All the best offroad rides in NZ... http://www.remotemoto.com/ E-mail... xtpete1@gmail.com
	0

05-28-2019, 08:35 AM	#3
Sanabil Join Date: May 2019 Posts: 5	Ok, my engine running is complete. Should i drain the current oil it is 200km used only but it is for cars . I can buy 20w50 for motorcycle of some good brand and start using it, right?
	0

05-29-2019, 12:43 AM	#6
Sanabil Join Date: May 2019 Posts: 5	Is API SG SAE oil ok for wet clutch motorcyle engine ? compared to JASO MA2? Thanks
	0

06-08-2019, 06:18 PM	#8
Sanabil Join Date: May 2019 Posts: 5	Thanks for your answers, i changed my oil flushed the old oil and put liqui moly 20w50 4t street and was expecting better results but bike now feels sluggish and is accelerating slowly. Engine temperature remains normal but bike is definitely not accelerating like it use to. I was previously using havoline 20w50 sae api sg although it says not recommended for motorcycle engine ,the bike accelerated very well , i could feel the power it felt that engine was running openly, now it feels cramped and suffocated. Any ideas? Thanks
	0