REF: Oiling & Lubrication - Sportsterpedia

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====== REF: Oiling & Lubrication ======
====== HD Super Premium 5 vs Napa 7148 5 micron oil filter  ======
Article by rocketmangb of the XLFORUM ((http://xlforum.net/forums/showthread.php?t=2064599&highlight=oil+filter)) \\
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Both filters have a top bypass. \\
This means that if the filter does bypass, oil runs across the top of the filter. \\
Unlike the old filters which had a bottom bypass (many still do). \\
A filter with a bottom bypass will wash the crap out of the media right in to the engine. \\


|  HD Super Premium 5 \\ Napa Gold 7148 - black \\ Napa Gold 7348 - chrome ((photos by rocketmangb of the XLFORUM http://xlforum.net/forums/showthread.php?t=2064599&highlight=oil+filter))  |  Left to right: \\ HD Premium 5 - Napa 7148 - Napa 7348 ((photos by rocketmangb of the XLFORUM http://xlforum.net/forums/showthread.php?t=2064599&highlight=oil+filter))  |This tubing cutter style tool was used to cut open \\ the filters. ((photo by rocketmangb of the XLFORUM http://xlforum.net/forums/showthread.php?t=2064599&highlight=oil+filter))|
|{{:techtalk:ref:oil:hd_super_premium_vs_napa_7148_comparision_1_by_rocketmangb.jpg?direct&300|}}|{{:techtalk:ref:oil:hd_super_premium_vs_napa_7148_comparision_2_by_rocketmangb.jpg?direct&300|}}|{{:techtalk:ref:oil:hd_super_premium_vs_napa_7148_comparision_4_by_rocketmangb.jpg?direct&300|}}|

|Cutting open the Napa filter. ((photo by rocketmangb of the XLFORUM http://xlforum.net/forums/showthread.php?t=2064599&highlight=oil+filter))||
|{{:techtalk:ref:oil:hd_super_premium_vs_napa_7148_comparision_5_by_rocketmangb.jpg?direct&300|}}|{{:techtalk:ref:oil:hd_super_premium_vs_napa_7148_comparision_6_by_rocketmangb.jpg?direct&300|}}|

|Baseplate opened out exposing the drainback \\ valve. ((photo by rocketmangb of the XLFORUM http://xlforum.net/forums/showthread.php?t=2064599&highlight=oil+filter))|  Napa 7148 internals. ((photos by rocketmangb of the XLFORUM, annotations by Hippysmack http://xlforum.net/forums/showthread.php?t=2064599&highlight=oil+filter))  ||
|{{:techtalk:ref:oil:hd_super_premium_vs_napa_7148_comparision_7_by_rocketmangb.jpg?direct&300|}}|{{:techtalk:ref:oil:hd_super_premium_vs_napa_7148_comparision_8_by_rocketmangb_-_annotated.jpg?direct&300|}}|{{:techtalk:ref:oil:hd_super_premium_vs_napa_7148_comparision_9_by_rocketmangb.jpg?direct&300|}}|

|Cutting open the HD filter ((photos by rocketmangb of the XLFORUM http://xlforum.net/forums/showthread.php?t=2064599&highlight=oil+filter))|||
|{{:techtalk:ref:oil:hd_super_premium_vs_napa_7148_comparision_10_by_rocketmangb.jpg?direct&300|}}|{{:techtalk:ref:oil:hd_super_premium_vs_napa_7148_comparision_11_by_rocketmangb.jpg?direct&300|}}|{{:techtalk:ref:oil:hd_super_premium_vs_napa_7148_comparision_12_by_rocketmangb.jpg?direct&300|}}|

|HD filter internals ((photos by rocketmangb of the XLFORUM, annotations by Hippysmack http://xlforum.net/forums/showthread.php?t=2064599&highlight=oil+filter))|||
|{{:techtalk:ref:oil:hd_super_premium_vs_napa_7148_comparision_13_by_rocketmangb.jpg?direct&300|}}|{{:techtalk:ref:oil:hd_super_premium_vs_napa_7148_comparision_14_by_rocketmangb_-_annotated.jpg?direct&300|}}|{{:techtalk:ref:oil:hd_super_premium_vs_napa_7148_comparision_17_by_rocketmangb.jpg?direct&300|}}|



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