guzziriders.org - moto guzzi forum Homepage
Forum Home Forum Home > Technical > Oil
  New Posts New Posts RSS Feed - Newest Guzzi oil specs
  FAQ FAQ  Forum Search   Events   Register Register  Login Login

Newest Guzzi oil specs

 Post Reply Post Reply
Author
Message
Zener View Drop Down
Guzzino
Guzzino
Avatar

Joined: 07 Oct 2020
Location: Ohio, USA
Status: Offline
Points: 6
Post Options Post Options   Thanks (0) Thanks(0)   Quote Zener Quote  Post ReplyReply Direct Link To This Post Topic: Newest Guzzi oil specs
    Posted: 15 Nov 2022 at 19:49
I see that on the latest models Guzzi is now recommending 75W140 for both the gear box and bevel.
Previous models, mine specifically, it was 75W90 for the gearbox and 85W140 for the bevel. Looking at the parts fiche on the gearboxes there are very few differences that wouldn’t account for the change in specs. So, I assume when I run out of both I can use the 75W140 in both. It would be nice to only keep one on hand. Good idea or bad?
Zener
Back to Top
paulbricey View Drop Down
Senior Member
Senior Member
Avatar

Joined: 23 Dec 2019
Location: Stockport UK
Status: Online
Points: 404
Post Options Post Options   Thanks (1) Thanks(1)   Quote paulbricey Quote  Post ReplyReply Direct Link To This Post Posted: 16 Nov 2022 at 17:42
In general 140 grades are fine/better for slow(ish) moving non-very hot gearbox & bevel box because that determines the viscometrics  - just don't forget the bench/rig tested wear performance (& hence extreme load/corrosion etc additive levels are higher) determines GL-3/4/5 grade....and I think they are all saying GL5 for modern (being made still) Guzzis
Griso 1200 8V, V50
Back to Top
Andy M View Drop Down
Senior Member
Senior Member
Avatar

Joined: 27 Jan 2015
Location: Leeds
Status: Offline
Points: 1000
Post Options Post Options   Thanks (1) Thanks(1)   Quote Andy M Quote  Post ReplyReply Direct Link To This Post Posted: 17 Nov 2022 at 11:51
The parts fiche doesn't show tolerances or materials. The GL rating is probably more important than the grade.

Having had the #$%^&@#s that pass for dealers use the wrong oil in a 2022 V7 850 I can confirm it makes a big difference. At 5C it was impossible to get from first to second gear for the first mile. Change the oil to what the manual calls for and you can.

Not sure why you'd want to move away from the spec for your given bike? Just the convenience of not taking two bottles into the garage? If you are doing a 20000 mile tour fair enough, otherwise I can't see why it would be such a hassle.

Andy 
Back to Top
Mike H View Drop Down
Senior Member
Senior Member
Avatar

Joined: 21 May 2014
Location: East Anglia
Status: Offline
Points: 8370
Post Options Post Options   Thanks (1) Thanks(1)   Quote Mike H Quote  Post ReplyReply Direct Link To This Post Posted: 17 Nov 2022 at 16:49
If it helps, I started using 85W140 in my old 1976 Le Mans 850, it improved it no end! Big smile

Gear change was almost slick (albeit a later California 3 gearbox by this time), and the final drive was noticeably cooler after a long run. It was a reccomendation years ago on the club forum, plus a bit of molyslip, in both gearbox and FD.


"Chicken nuggets don't dance on a Tuesday."
Back to Top
 Post Reply Post Reply
  Share Topic   

Forum Jump Forum Permissions View Drop Down

Forum Software by Web Wiz Forums® version 12.03
Copyright ©2001-2019 Web Wiz Ltd.

This page was generated in 0.078 seconds.