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What is this red stuff in the filler tube?

901 views 2 replies 3 participants last post by  Clay Henry 
#1 ·
Hey there people,
This is my first Diesel truck AND my first oil change for this truck. I removed the oil filler cap to put in the engine oil and found red goo (best description I can come up with) inside the filler tube and on the cap. Looks kind of like hi-temp. bearing grease. I wiped it out and continued but I would like to know if this is normal?:dunno: Oil collected from engine looked normal.

This is an 02 F350 automatic.

Thanks,

JR
 
#2 ·
That doesnt sound normal to me, i would get an oil sample and send it in to the lab.
 
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