Originally Posted By: 3311
[/quote]I believe the 2014 5.3 is a different engine. Specs 0w20 and higher flow oil pump.
The larger filter on the 5.3 is to catch all the additional wear particles from the eco swill 0w20.
LOL
I'm glad my 2017 Silverado HD w/ the 6.0 L doesn't spec' that 'water' called 0W20.
If the every 3,000 miles OCI, I probably wouldn't be so concerned about using the smaller filter, but since using the OLS, I'm going about 7,500 miles w/ synthetic oil. I've used synthetic oil since my 1st truck w/ a OLS.
Some history
2000 GMC Sierra 2500 w/ 6.0 L & a PF61 'long' filter OCI according to OLS was around 5,000 miles (sold truck after 60,000 miles)
2004 Chev Silverado 2500HD w/ 6.0 L & a PF61 'long' filter (PF61 'obsoleted'/replaced by PF46 'short' filter). Used the WIX 51522 after that) OCI was about 8,000 miles (sold truck after 126,000 miles)
2011 Chev Silverado 2500HD w/ 6.0 L & a PF48 'short' filter. OCI was about 8,000 miles. I used either a PF63 (non e-core) or a WIX 57045. (sold after 75,000 miles)
After I go thru the 2 free oil changes, I'll either go w/ a PF63 or the WIX.