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Changed the oil on my 2008 Fxstc yesterday and went for a ride today and after riding for a couple of hours I stopped and deceided to check the oil and it looked bubbly when I looked down the filler pipe, is this normal? I used redline oil 20w50.
I have been changing and checking my own oil since I bought my bike. I use SYN-3 and I also notice what I would describe more as a foam after riding for a while. I never thought anything of it and I have never had any issues. My engine seems to run as good as the day I brought her home.
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