How much oil to put in my 4.2 vortex.

Artjman83

New Member
How much oil do I put in my 2006 Trailblazer 4.2 i6.. I have read that the 4200 takes 7 quarts. Although when i read the dipstick after putting in 6 quarts it says full.. does it actually take 6 or 7 quarts.. any help would be much appreciated.. thanks.
 

Redbeard

Well-Known Member
I've always used 7 quarts and not a problem in nearly 200k miles. As Mounce says it shows just a hair over full.
 

DocBrown

Well-Known Member
That stupid stick on my old 2003 TB was so hard to read I just did 7 qts and I never had an issue.
 

HARDTRAILZ

Moderator
7 has always worked for me
 

vipergg

Well-Known Member
How much oil do I put in my 2006 Trailblazer 4.2 i6.. I have read that the 4200 takes 7 quarts. Although when i read the dipstick after putting in 6 quarts it says full.. does it actually take 6 or 7 quarts.. any help would be much appreciated.. thanks.
Manual says 7 so go with that as long as you are doing the filter too .
 

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