Hi all! I’ve recently purchased a jap import Honda Shuttle (Fit in a wagon body), which I believe has the same hybrid system, engine and driveline as the GP5 Fit. Mine is a GP7.

I was having a hard time finding official service information- being that workshop manuals don’t seem to be available even in Japan, so thought to create this post to help store some info as it comes to light.

I’ll start with the official owners manual guide to engine oil weights which I’ve translated from Japanese.

Based on this and living in Melbourne Aus where the temp gets down to 0 degrees Celsius in winter, I’m reading this as that Honda recommends 5w30 for my climate, though most people online think they should use 0w20. Just wanted to clarify official Honda source.

in the future I’m hoping to find official 7 speed dual clutch servicing info including types and volumes of fluids (hydrolic and ATF), and torque values for transmission drain plug and engine oil sump plug. These should be the same for Fit/Shuttle I would imagine. I’m wanting to keep our car going for a good long time and servicing is a top priority for me (I do it at home).

 

Thanks for this! I have just picked up a GP5 and am also putting together a service schedule for the car. I'll report back with anything that I can find which is confirmed. Main one I can't verify yet is the transmission/clutch oil. I read conflicting reports of HCF-2 or DW-1. It would be great to put together a full chart of service intervals and fluids, part numbers etc

 

Oil viscosity numbers are [cold weight]w-[hot weight]. That is, oils engineered in the last half century don't follow the same temperature-viscosity curves as classic SAE30 (or whatever) oils did. Modern oils still get thinner as they heat up, but less so than the SAE formulations that the numbers come from.
Heavier oil weights should provide more protection to the metal, but also increase drag. Since your local temperatures rarely drop below freezing, you could probably get away with increasing the cold weight by a step to increase cold startup protection. Though, the engine is water cooled and thermostat regulated, so there's not much reason to increase the hot oil weight. So ideally you would be looking for 5w-20 motor oil, if available.

 

Hey AFitCalledWanda, thanks for your reply. Sounds like you are on the same mission as me! Have you had a look through the maintenance note Japanese docs in your glove box yet? That’s where I’m hoping to find some more info when I next have the time to go digging.

Are you based in Aus too? I’m seeing lots of Hybrid Fits that are new imported on the roads here

 

Also just came across this link to the Japanese Shuttle owners manual. I’m sure it could be translated but I’d guess that AI could be used to do the whole job in one go.

https://www.honda.co.jp/ownersmanual...D46310_web.pdf

 

That schematic shows that 0w-16, 0w-20, or 5w-30 are suitable for your climate (actually most climates where humans live). Most people "think they should use 0w-20" because that is what Honda has been recommending for the Fit, at least in the US where I am, for over a decade.