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Honda Trail 125 Forum

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Synthetic oil

jBIRDt

Member
Joined
Mar 10, 2021
Messages
75
We have used 100% synthetic lubes since 80s. I think filtration is just as important (magnetic plugs are good in my mind also)
 

TrailBoss

Administrator
Staff member
Joined
Oct 11, 2020
Messages
305
Location
Pennsylvania, USA
I'm curious if 10w-40 would be an acceptable viscosity for non cold weather use? 10w-30 is the odd viscosity in my stable. I run Castrol Power1 4t 10w-40 in the Triumphs.
 

G19Tony

Well-known member
Joined
Jan 24, 2021
Messages
800
Location
Las Vegas, NV
I'm putting a crankshaft stabilizer in today, when I went to the RipOff Now Powersports, they didn't have 10-30, so I got a quart of 10-40. I think it will be better for the desert, anyway.
 

GORT

New member
Joined
Apr 4, 2021
Messages
19
Location
Crabapple Cove. Maine
I've been using Shell Rotella T 5W-40 mixed fleet oil for years in my small engines. High detergent, good for diesel and gas engines (extra detergents for the diesels and not adverse to cat converters). I'll do my first oil change with Honda oil then move on.
 

Ronzee

New member
Joined
Jan 12, 2021
Messages
7
I'm curious if 10w-40 would be an acceptable viscosity for non cold weather use? 10w-30 is the odd viscosity in my stable. I run Castrol Power1 4t 10w-40 in the Triumphs.
It would probably work but Honda recommends 10w30. That is what im going to use.
 

Migolito

Active member
Joined
Jan 24, 2021
Messages
86
WARNING WARNING WARING: Engine Oil discussions are dangerous!! It's like talking about how ugly someones Mom is, there's no good answer.

The 4t is exactly what i use. Its simply not an issue and works as good as any.
 
Last edited:

G19Tony

Well-known member
Joined
Jan 24, 2021
Messages
800
Location
Las Vegas, NV
I've been using Shell Rotella T 5W-40 mixed fleet oil for years in my small engines. High detergent, good for diesel and gas engines (extra detergents for the diesels and not adverse to cat converters). I'll do my first oil change with Honda oil then move on.

Is Hawkeye Pierce your doctor?
 

McRuss

Member
Joined
May 10, 2021
Messages
32
Anyone else find it odd that the manual calls for the same .7 liter as .7 quart after draining? It does show a difference for the quantity after disassembly......
As for synthetics, I've used Rotella full synth in my bikes for years, never had a wet clutch slip (supposedly the reason for NOT using synthetics). I like the long life feature when on a multi-thousand mile trip and no need to change oil half way through.
YMMV.
 
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