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When I go to www.motorcraft.com and enter the SPARK PLUG spec on my truck -(2000 F250SD V10 6.8L), it lists 10 off AWSF22E and/or 3 off AGSF22WMF4. Which do I need????
Maybe there's an 8.8L V13? (Which is a 9.5L V14 with one plug blown out?)
The AGSF22W is the newer specification plug, which was changed for the 2001 model year.
I believe the AGSF22WMF4 is the suppressor type spark plug. Both are platinum. Don't forget to change the coil wires as well. It is a good idea to change these when you do the plugs.
For the record, the useful quote from 1toptech says : Most AWSF plugs have been replaced by AGSF. The difference is that AGSF plugs are threaded all the way, and therfore can be used in either application. The 22 refers to the heat range. Since that is the same, they should be the correct plugs for your vehicle.
mmm.... longer threads.....might solve a plug blow out problem..... is Ford admitting something here?
Last edited by Musicman250; Mar 19, 2006 at 01:51 PM.
The 2000 SD manual says AWSF-22E. The differences between the two that you can see are that the AGSF-22W has a longer threaded portion that goes up to the tapered seat. There may be internal and material differences too. Your 2000 was designed to use the AWSF-22E.
The spark plug may have longer threads but if the head doesn't, it won't do you any good. Unless inserting AGSF-22W's will make the head grow additional threads. You may also try root stimulator, in liquid form, along with a good potting soil...
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