On my 5.5 Owen generator(motorhome) has a short oil filter that is very hard to get my oil filter wrench on to take it off. So I e-mailed Baldwin to see what the micron rating was on the longer BT-353 filter and its a little better than the stock filter for my gen. So now I have a filter that should filter a little better and make it very easy to change because its 5 3/4" long which makes it easy to take off. The stock filter was around 3" long.
ROD