Stevebfl though highly of it for some situations -
MotorVac? . The search for Motorvac turned up the threads on x66p and related compounds (looong discussions).
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John
2003 Firemist Red/grey leather SL 500
2015 Palladium Silver/black mbtex GLK 350
1987 Smoke Silver/burgundy mbtex 300E Sportline (SOLD)
Click to see 87 300E