ezxpress Posted April 30, 2017 Share Posted April 30, 2017 I have a 2011 cxu 613 pinnacle that was an old ctl tanker truck. I've noticed the glass bulb fuel filter fills fast. In my 05 century, I only changed it when I changed I changed the oil which was every 12000 miles. It seems with this Mack, I'm changing the filter about every 5000 miles. I've had the injectors and cups changed at 364664 miles and I've already had the pm service at 377000. It's at 385456 and its almost full again. Is this normal? Quote Link to comment https://www.bigmacktrucks.com/topic/49686-fuel-filter-filling-fast/ Share on other sites More sharing options...
Dirtymilkman Posted April 30, 2017 Share Posted April 30, 2017 Yep. I change it every 20,000 no matter what. Quote Link to comment https://www.bigmacktrucks.com/topic/49686-fuel-filter-filling-fast/#findComment-368687 Share on other sites More sharing options...
Mackpro Posted April 30, 2017 Share Posted April 30, 2017 On a MP engine, if you have the Davco mounted on the fram rail. The wrong filter part number can be installed and cause the filter to plug way to early. I'll try to get you the correct filter part number Monday. Quote Link to comment https://www.bigmacktrucks.com/topic/49686-fuel-filter-filling-fast/#findComment-368696 Share on other sites More sharing options...
ezxpress Posted April 30, 2017 Author Share Posted April 30, 2017 I got Mack to pm the truck before I picked it up. That filter got full early also. I take my truck to Goodyear for pm service and they're going to use the proper filters. Plus my fuel mileage is 5 to 5.3, could they be related? Quote Link to comment https://www.bigmacktrucks.com/topic/49686-fuel-filter-filling-fast/#findComment-368718 Share on other sites More sharing options...
Mackpro Posted May 3, 2017 Share Posted May 3, 2017 With the Davco fuel filter system on a Mack ETECH/ASET engine we use Mack filter part number 301-SD-19C. When the same system used on a MP engine we use a Fleetguard FS 19765. If you use the 301-SD-19C on a MP engine they will clog up fast. We know for sure cause we have done it several times! LOL Quote Link to comment https://www.bigmacktrucks.com/topic/49686-fuel-filter-filling-fast/#findComment-368935 Share on other sites More sharing options...
Mackpro Posted May 3, 2017 Share Posted May 3, 2017 The ETECH/ASET Davco filters need to be a 7 micron rating and the MP engines a 25 micron rating. http://www.davco.com/filters.html Quote Link to comment https://www.bigmacktrucks.com/topic/49686-fuel-filter-filling-fast/#findComment-368937 Share on other sites More sharing options...
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