So the other day while I was doing the oil change I figured I should check the transmission oil. I already had the belly pan off and the car jacked up, and its right there. Also I'd noticed a whine in the transmission I didn't like.
The fill plug is a big head allen but its quite short. Fortunately I had one as it came in the kit I needed for the diff on the Mercedes. With the plug out the oil is supposed to be level with the hole. In my case is was well below level. Well that explains the noise...
I stopped over at Car Quest and bought some GL4 gear oil. Its surprising that VW specs gear oil for this job. Every other manual transmission I've ever had used ATF. Theres big debate on TDI Club about exactly what oil to get but this gear oil was the only thing I could get that met GL4 and not GL5.
The big debate centers on the fact that the stuff VW uses is more like ATF and the stuff they recommend is gear oil and way heavier. I'm thinking to get some Amsoil Synchromesh which is more like thick ATF than gear oil and give it a shot. Hopefully it'll be thin enough that winter time shifting won't be impaired. I haven't ordered any yet because I wanted Keith's (of KMH Motors) opinion before I tried anything.
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