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#4242671 - 11/06/16 02:45 AM Sae 80 gearbox oil alternatives?
slybunda Offline


Registered: 05/06/14
Posts: 439
Loc: UK
My 1995 ford fiesta 1.6 lists sae80 for gearbox oil which seems to be mineral stuff.
Can i use synthetic 75w80 or will it blow up?
My logic is that if its a 80 when hot then it should be fine and thinner than the straight 80 when cold.
But not sure if gearboxs are more sensitive to oil than engines are?
_________________________
1995 Ford Fiesta 1.6i 16v Si
2000 Toyota Celica 1.8 VVTL-i
2007 Toyota Aygo+ 1.0i

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#4242686 - 11/06/16 03:51 AM Re: Sae 80 gearbox oil alternatives? [Re: slybunda]
Kamele0N Offline


Registered: 02/09/15
Posts: 2054
Loc: Slovenia
I am sure that there will be no problem if you will use any generic 75w90 gl4 oil...

Put your car in oilfinder tool of major oil companies...

I am sure that there will be at least multiple choices for gearbox oil
_________________________
2011 Hyundai i30 1.4 CVVT Shell Helix Ultra 5w40
1997 Toyota Landcruiser KZJ95 3.0 TD various 10w40

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#4243219 - 11/06/16 05:09 PM Re: Sae 80 gearbox oil alternatives? [Re: slybunda]
slybunda Offline


Registered: 05/06/14
Posts: 439
Loc: UK
Why would mineral oil be recommended over synthetic?
_________________________
1995 Ford Fiesta 1.6i 16v Si
2000 Toyota Celica 1.8 VVTL-i
2007 Toyota Aygo+ 1.0i

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#4243888 - 11/07/16 12:20 PM Re: Sae 80 gearbox oil alternatives? [Re: slybunda]
Kamele0N Offline


Registered: 02/09/15
Posts: 2054
Loc: Slovenia
1995...... smile
_________________________
2011 Hyundai i30 1.4 CVVT Shell Helix Ultra 5w40
1997 Toyota Landcruiser KZJ95 3.0 TD various 10w40

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#4243970 - 11/07/16 01:58 PM Re: Sae 80 gearbox oil alternatives? [Re: slybunda]
slybunda Offline


Registered: 05/06/14
Posts: 439
Loc: UK
Cool i got a reply back from opieoils who recommend 75w80
So lots of options in that
_________________________
1995 Ford Fiesta 1.6i 16v Si
2000 Toyota Celica 1.8 VVTL-i
2007 Toyota Aygo+ 1.0i

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#4559473 - 10/30/17 06:09 PM Re: Sae 80 gearbox oil alternatives? [Re: slybunda]
slybunda Offline


Registered: 05/06/14
Posts: 439
Loc: UK
Well its been a while but finally ordered the gearbox oil. Iv ordered millers 75w80 synthetic oil. Hopefully it works fine and doesnt kill the gearbox.
Since sae 80 was originally specified for the box which was designed in the late 70s would multi grade 75w80 synthetic have been around since then?
_________________________
1995 Ford Fiesta 1.6i 16v Si
2000 Toyota Celica 1.8 VVTL-i
2007 Toyota Aygo+ 1.0i

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