Just finished changing the break in oil on my ZTX5 ZT740 Kohler. I used a funnel with a strainer. First qt was ok. Second quart found a piece of gray plastic in the funnel screen, same color as the bottle. I used Kohler 10/30 semi synthetic. Glad I found it.

Blue cap is for reference only.
	
		
			
		
		
	
			
			
Blue cap is for reference only.
			
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