I personally don't subscribe to recycled and/or biodegradable oils being "better" or even "as good" as virgin synthetics.

Some warnings here that G-Oil is not recommended for alusil cylinder engines.

G Oil Racing 5W30 VOA | Virgin Oil Analysis - PCMO/HDEO | Bob Is The Oil Guy

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'03 X5 4.4 Sport, last of the M62s (8-03 build date)
I believe in deadication to craftmanship in a world of mediocrity!