You shouldn't have a problem going over to synthetic, the filter is going to caught everything that might give you problems. Just keep using synthetic and your motor should be fine.

Good luck

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Professional greasecar installer
Austin TX


98 Jetta TDI with grease car kit + veg-therm (totaled)
87 MB 300SDL running on B99 / greasecar kit + 30 fphe
www.austingreaseguys.com