truck idle has incresed

[cajundave]

not sure if this is the correct place to place this subject, but my truck has not done this before and i have over 6000 miles on veggie oil. i think i will post this same question on the other forum also. i run a v3 system. in the morning i start up my truck and let it warm up for 5-10 minutes. the last 2 days after about 2-5 minutes the engine revs up from .5 to almost 1.5 rpms and will stay there. if i push on thegas pedal it goes back down to .5. the regular idle is at .5. any suggestions what this might be?
2000 f250 7.3

[2005F250]

Thats normal.

[Clay Henry]

Why would you let your truck idle that long to warm it up?
Give it 2 minutes or so just to get the oils flowing good and then drive it - not hard but just ease it down the road...these trucks warm up MUCH faster with a load on the engines...even if its just the load of the empty truck, it will warm up to full operating temp much fater when you put er in drive and go.

[somebodyelse5]

Yea thats normal. it does that to warm up the motor faster, i heard at 50 degrees and below it will do that...but mine will do it when its 60 or so out.

and henry, thats normally what i do in the afternoon and such....but if its a cold morning ill let her warm up a little.

[cajundave]

thanks guys