Anyone notice dark engine oil after chip? (Quad)

[ECappleman]

My dip stick has always been clear up to 5000 miles.

I have got about 2000 miles after the chip and it is getting dark like a 2nd gen. truck.



Is that because of the extra fuel that is being injected?

 

[bmoeller]

Is that because of the extra fuel that is being injected?

Yes.



My oil used to be pretty clear at 5k, when stock. Very dark now, with the BOMBs. It isn't as black as it used to be, because of the Frantz by-pass filter I have.

 

[Scrappy]

yup, mine with the TST gets pretty dark. It's more soot in the oil from the additional fueling.

 

[RMalone]

Mine has been black by 1k since new. Both before the six-gun and after. Sucker runs great though! Just switched to amsoil I dont expect the oil to stay any clearer but we'll see.

 

[Chaw]

Mine is bone stock and the oil is very dark by 500 miles and darker than my 96 was with a # 10 plate. I am confused why the oil is so black.

 

[nickleinonen]

Mine is bone stock and the oil is very dark by 500 miles and darker than my 96 was with a # 10 plate. I am confused why the oil is so black.

3rd injection event in the 600/610 engines...

 

[ECappleman]

Oh, by the way, mine is an 03. 5.

 

[Vaughn MacKenzie]

Oh, by the way, mine is an 03. 5.

03. 5?

 

[Matt400]

I read in issue 47 where the 03. 5's got the 48re where 03's were 47re.

 

[RMalone]

If they keep doing so many minor tweeks in mid-year (emissions and bragging rights are the reasons I know) we might be able to buy a 07. 01-07. 99 Imagine the service manuals.

 

[MMeier]

Yep, even when it was new and unbombed the oil was getting dark by 1500-2000 miles. My ol' 97 would stay clear until about 5or 6 k miles even with bombs. 97 ran on Rotella, new truck did till 22k now at 77k it still goes on Amsoil.

 

[TX Gooseneck]

Mine's always been black, but I'm also towing heavy. I went way over on my typical service interval this time and it didn't look any worse than when I've changed it at 3000.

 

[ECappleman]

03. 5?

In mid year they went with the HO engine and 48RE match. 305/555

This engine lasted form 03. 5 to 04. 5

In 04. 5 they went to the 600 engine.



Class dismissed!

 

[MMeier]

Hmm... . my 305/555 was built 09/02.

 

[nickleinonen]

Hmm... . my 305/555 was built 09/02.

my 305/555 was built on 09-17-03

 

[HOBrian]

my 305/555 was built on 09-17-03

Are they both 6spds??? When I ordered mine it could only be ordered with the six speed! 2/09/03

 

[ECappleman]

Hmm... . my 305/555 was built 09/02.

It was a six speed then.

Like I said, they didn't mate the 305 with the 48RE till mid 2003 build cycle.

 

[LightmanE300]

MMeier, I'd wager to say something is/was wrong with your truck or you're using crappy fuel. 03-04's, assuming you dont have the CA version, do not darken the oil for many miles when stock. Guys with 04. 5+ can't really comment, all of the 600 engines blacken the oil quickly.



Yes to the original poster though - with any of the boxes the overfueling causes a less complete burn and you get higher egts, smoke out the tailpipe, and soot in the oil. Oh yeah and a bigger smile too

 

[JohnCooper]

I read in issue 47 where the 03. 5's got the 48re where 03's were 47re.

My California 03 was built in March of '03 and does have the 48RE. Oo.