Gearbox Oil

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lolomovil
Posts: 2
Joined: 20 Dec 2017, 12:02

Gearbox Oil

Post by lolomovil » 01 Apr 2019, 11:09

I'm going to make a gearbox oil change on my 4 speed gearbox and i'm asking what modern oil is better for it. ¿Api4 or api5? ¿Monograde or multigrade? Thanks.

LanciaFin
Posts: 122
Joined: 04 Dec 2011, 16:40

Re: Gearbox Oil

Post by LanciaFin » 01 Apr 2019, 11:48

Hi,

The original specification is probably API GL3. Do not use synthetic oil or one with EP-additives, they will harm the synchronizers. I use Tutela ZC90 in my Flavia.

BR,
Miika

lolomovil
Posts: 2
Joined: 20 Dec 2017, 12:02

Re: Gearbox Oil

Post by lolomovil » 01 Apr 2019, 19:54

Thanks Miika. I searched Tutela ZC90 in my local distributors and found that this oil is used on Iveco trucks today. I'm a bit confused as the fulvia and flavia has diff shared with gearbox and actual standards recommends API GL5 por hypoid gears, but as lancia gearbox is engineered with API GL3 in mind, i think this oil is ok for lancia diff.

Regards.

Ed Levin
Posts: 503
Joined: 23 Dec 2008, 10:07

Re: Gearbox Oil

Post by Ed Levin » 14 Apr 2019, 19:59

I've used full synthetic -- RedLine Lightweight Shockproof -- for over a decade with no issues whatsoever.

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