Question about 2001 Volkswagen Golf
If a gear box has the incorrect viscosity of oil in it, it can cause gears to graunch, or need force to engage, this will be worse when it is cold, and improve as the gearbox warms up, as the oil gets thinner (runnier).
It is a common mistake to put a 90 or 80W90 grade oil into a gearbox for which 75W90 might be specified.
The numbers indicate the thicknes (viscosity) of the oil.
The W indicates that viscosity modifiers have been added to the oil, to give it a wider range of properties.
ie - 75W90 means that the oil is as runny as a 75 grade (thin) oil when it is cold, but will be as thick as a 90 grade (thick) oil when it is hot.
A 90 grade oil would be too thick when cold and cause the syncromesh rings (rings on the sides if the gears to get both engaging gears spinning at the same speed for easy engagement of the gear teeth) to drag, requiring excess pressure to get them spinning at the appropriate speed - excess pressure is supplied by you - the driver.
So bottom line - check that the right oil has been put into the gear box.
Posted on Feb 05, 2010
You are asking what can be done to shift your manual tansmission easier ?
I would say if you are "grinding" gears, The clutch will A) have to be repaired, or B) a syncro has gone out in the trany.
Posted on Feb 03, 2010
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Posted on Jan 02, 2017
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