So I did an oil change yesterday and found this vanilla pudding looking stuff under my oil cap and down my filler tube. So of course I started freaking out and came on the forum to search. I found that this is supposedly normal for the 4.7 when the colder weather starts. I also read that it could be a sign of blown head gasket or cracked block. I have the parts on order that are in the technical service bulletin 090100A. This is the tsb that dodge put out that apparently fixes this problem of condensation in the oil filler tube. I also read that a little build up is normal and a lot of build up could be bad. I'm just really nervous about it and was wondering what the people on here that know a lot more than me think. Are the pics normal oil emulsion as dodge claims? Will the parts that are in the tsb 090100a help? Also I run 5w30 Quaker state full synthetic. I change my oil religiously every 3k. Any my odometer reads 61,5xx.




I also wiped all this junk out of the filler tube and cap before adding the new oil. I drove 20 miles to work last night, 20 miles home this morning. I let the truck sit for an hour after I got home work. I then went out to check it and the cap and filler tube have some of this stuff forming on it already.

Well my Grand Prix had a blown head gasket and this is exactly my oil cap looked like so you might have coolant leaking in the engine. Do a compression test if you can.

But if this is normal then you may be alright, plus your truck has pretty low miles.

If your dip stick is clean (just oil) then you're fine.

The amount you show is higher than I've ever seen with my 4.7, but each one is different, I suppose. As for the SB, I've no clue what it does.

Good luck!

Check your PVC valve or just replace it to be sure $8 this helps your engine breath and help stop this from happening and check the breather lines also they may be mucked up remove them and use some brake cleaner on the hose let dry then re install them.

You may want to try a different oil that doesn’t foam as much

PVC

Just in case watch ur temps for a while. Anything over 210 should be alarming and pull over, most likely the head gasket if that happens, happened in my moms 2000 4.7 durango, she drove it home another 6 miles with the coolant almost to the check gauge line but the problem was that the loss of coolant meant the engine was already much hotter, i would guess hot enough to do major damage because a rocker fell off, the timing chain stretched, valves went into pistons and to top it off the heads cracked and block warped within all a month, dealer never did a compression test till it woulndnt run. To late by then

I've had this for going on 13 years. If you're not losing water your head gasket is fine. It's very common, the oil filler gets cold. Do check the PCV valve though.

The kit you're referring too, it basically "hides" the emulsion. It's still there.

If you want to try something - insulate the oil filler. If it gets warm it will burn it off.

is this kit the dipstick looking deal under the oil cap

Like you said common thing, I flipped just like you when I saw this and got the new PCV and Oil cap and it still does it, 176K on the clock and its now fine. Due to the different material of the block and filler tube, I believe is what causes this. I just wipe it out if it is there when I change the oil and if not don't worry about it anymore.

Ok I'm just glad that I don't have much to worry about. The only time my engine ever ran over 210 was in august and i was on a 200 mile trip trip and it was about 90 outside . I did have to turn the heat on to bring the temp back down. Had to do this the whope trip but didn't have any problems since. I'll post pictures of the parts that I ordered I should be getting them today.

I've NEVER had to turn on the heat to bring the temp down, even in 100+ weather with the a/c on.

You may have a partially clogged cooling system.