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Senior User
Joined: Jan 2006
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Recommendations
Just yesterday changed the oil and oil filter with a bottle of HSS. Had a couple of injectors with intermittent miss. Filled fuel tank with 31 gal #2 and 4 gal bio. Today it does not run so well, especially during acceleration and trying to run at 55mph. Thinking it may be fuel filters. Did not have any at home and wanted to wait until I could pick some up at the IH dealer(cheaper). I have only run +/- 30 miles since oill change. Thoughts or Recommendations?????
04 EX 133k mi
late build 6.0
4" MBRP exhaust
SCT Hybrid Race
18" Eagles w/ Mich
04 EX 133k mi
late build 6.0
4" MBRP exhaust
SCT Hybrid Race
18" Eagles w/ Mich
Cargo Master
Joined: Jan 2006
Posts: 3,009
Likes: 88
From: SE. MA
im not sure the bio is causing you issues.... but I know I have been running b-5 for about 2,000 miles and I just changed my filters today they only had about 8,000 miles on them but I wanted to change them early since I stareted running bio and wanted to make sure there wasnt going to be a problem.truck was running fine and seems to be running the same since I changed them. just my $.02
Fleet Owner
Joined: Nov 2003
Posts: 27,880
Likes: 3,592
Ford manual states running Bio is a "severe service" application. The severe service fuel filter change interval is 10,000 miles (IIRC). I would recommend changing it at 5000 after the first charge of bio - looks like your charge would be around B10 and it is a very good cleaner at this concentration.
Elder User
Joined: Jan 2004
Posts: 853
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From: northern,california
I see you have 133k on her. There is probably a considerable amount of diesel sludge in your tank and fuel lines. Like others have said change your fuel filters. With bio you need to monitor the filters very carefully. I would start with B2-B5 for a few tank fulls and then change your filters. I would then add a few more % of bio on every tank. After 3 months of bio your tank and lines should be nice and clean. Keep a few fuel filters and tools with you in case you need to change one on the fly. I changed my filters after every four fill ups when I started with bio.
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Cargo Master
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From: SE. MA
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Senior User
Joined: May 2004
Posts: 279
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From: Trappe Pa
I'm running B10 for the past 3-4 months. I'm at 119,600+ miles and no problems.
I changed my filters at 116,232 miles 1 month after adding B10 exclusively and the filters still looked clean after 13,000 miles on them.
I changed my filters at 116,232 miles 1 month after adding B10 exclusively and the filters still looked clean after 13,000 miles on them.
Elder User
Joined: Jan 2004
Posts: 853
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From: northern,california
I've been running B50 for the last month or so. I wont go to a higher % until summer when it warms up. I don't notice much of a power loss but the mileage went down by 1mpg. Truck runs very smooth and has lost a lot of the diesel clatter at idle. The exhaust smell has changed to a more french fry smell. Ford states not to run any higher than B5. My thought is that Bio is a bit more work and must be monitored. The fuel will start to cloud around 40 deg and gel at 30 deg. It is also a good cleanser. So if there is any junk in your tank it will go straight to the filters and clog them up. If you try running on clogged filters you can destroy the injectors from starving of fuel. Also there are a lot of back yard brewers and it is hard to control the quality. Diesel #2 is pour and go maybe add some additive if the fuel is questionable.
Cargo Master
Joined: Jan 2006
Posts: 3,009
Likes: 88
From: SE. MA
Originally Posted by Mulepick
My owner's manual says nothing >B5. What concentrations in excess of this % are people getting away with on this 6.0l? B5's the only concentration I know of around here and it's the same price as pure #2.