Castrol GTX Classic 20W-50 - viable option?

H

hillbillync

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This oil is readily available in my area as opposed to the Castrol 4T SG rated. It's also $22 for 5 quarts as opposed to $7.50ish per quart for the 4T if I order it. I did a search on this forum and didn't see any discussion but could have missed previous posts. It appears it addresses the lower amounts of zinc / phosphorus of more modern oils and in the description and it specifically mentions "flat tappet, push rod" engines. The warning about catalytic converters seems moot if we already use recommended oils with high levels. My bike is a '94 R1100RS.
Castrol Classic Front.jpgCastrol Classic Rear.jpg
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    Castrol Classic Front.jpg (12.3 KB)
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    Castrol Classic Rear.jpg (26.8 KB)
 
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