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Panning for Gold in Metro
Topic Started: Sep 28 2012, 04:13 PM (740 Views)
heckling7


Yesterday I drained, filtered and refilled my manual synchromesh fluid that I put in 10,000 miles ago. Out of curiosity I wanted to see its state. In 10,000 miles over 2 years the Pennzoil Synchromesh went from light brown to dark brown. It still has good viscosity, but looks dirty some. I had a small amount of metal fur attached to the magnet on the drain plug, but no where near the amount of metal goo it had when I drained the original factory heavy lube previously. The gold flakes this time were very scant, unlike the previous change of "striking it rich" :O . The previous owner enjoyed "speed shifting" :'( he boastfully called it, so that was likely the prime source of the gold flakes back then.
So my question is how often do you guys change your manual tranny fluid? 20,ooo or 30k? Is dark brown time for a change? I think I didnt do too great of a job completely flushing out the old stuff as I recall it came out cool to the touch, so maybe that has affected the new stuff over the 10k miles. Is the Pennzoil Synchromesh the best for these Metros with mildly abused transmissions? Thanks Guys!
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starscream5000
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Got 70 MPG?

I change mine once a year, which is a little over 12000 miles for me.
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snowfish
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Basic GearHead

heckling7
Sep 28 2012, 04:13 PM
but no where near the amount of metal goo it had when I drained the original factory heavy lube previously. The gold flakes this time were very scant, unlike the previous change
Pretty sure the key is "original" 12+ year old lube. :smackface

For manual transmissions, my theory is it's Better to drain them cold. :hmm Then all the fine, furry, metal particles can settle out & drain off better. :hmm Maybe.....just a thought. :hmm

Then again, hot will make everything flow faster. :tumbleweed

Who knows? :dunno I don't think you change it too often. :shake

The fact that you did change it, and found very few particles, is testament that you're keeping your ride healthy for a long time. :rocker
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Coche Blanco
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Troll Certified

I believe 30k is recommended.
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heckling7


snowfish, well, by the amount of gold in there initially it looked like the original owner never changed it. I'd have to guess though it was changed at least once during the 83,000 miles I didnt have it. When I changed it at 95,000 it looked aweful. I sorta hope he never changed it as it would be heart breaking to know everytime he did chang it it had that amount of gold and metal drop out. :x It would be nice to think all the wear was in that one change, but thats probably wishful thinking :whistle
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Woodie
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60K is plenty often
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