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Old 06-14-2020, 09:30 PM   #28
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Join Date: Feb 2008
Location: Kansas, USA

Originally Posted by dl242gt View Post
FYI, I tried the 74-75 tall oil filler cap on my setup and it didn't work well....changed to the earlier type cap and it's worked fine
I've got both caps (B18 & B20), but I find this "engineered" setup puzzling. Perhaps oil vapor condenses on filter and drains back into engine, unless old-faithful is blowing.

"Well K&N makes such a creature that fits the B18 and B20 engines, part # 62-1330. It fits perfectly on the oil filler cap."
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