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Engine Oil and Oil Filter Replacement
Removal Procedure

Important: In order to completely drain the oil from the oil pan internal baffling, the bottom of the oil pan must be level during the oil drain procedure.


  1. <LI type=1>Open the hood. <LI type=1>Remove the oil fill cap. <LI type=1>Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle . <LI type=1>Place a oil drain pan under the oil pan drain plug. <LI type=1>Remove the oil pan drain plug. <LI type=1>Drain the engine oil. <LI type=1>Wipe the excess oil from the drain plug hole and plug.


    <LI type=1>Remove the oil filter from the engine block. Important: Check the old oil filter to ensure that the filter seal is not left on the engine block.
  2. Wipe the excess oil from the oil filter mounting.
Installation Procedure


  1. <LI type=1>Lubricate the oil filter seal with clean engine oil. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.
    <LI type=1>Install the oil filter to the engine block. Tighten
    Tighten the oil filter to 30 N·m (22 lb ft).



    <LI type=1>Install the oil drain plug to the engine block. Tighten
    Tighten the oil pan drain plug to 25 N·m (18 lb ft).
    <LI type=1>Lower the vehicle. <LI type=1>Fill the crankcase with the proper quantity and grade of engine oil. Refer to Approximate Fluid Capacities and Fluid and Lubricant Recommendations . <LI type=1>Remove the oil level indicator. <LI type=1>Wipe the indicator with a clean cloth. <LI type=1>Install the oil level indicator. <LI type=1>Remove the oil level indicator in order to check the level. <LI type=1>Add oil if necessary.
  2. Close the hood.
 

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I've read the that oil REALLY comes outa there. Usually overshoots the drain pan. Also have read about people having different readings as related to the 6 quart fill. Most people will put in 5-1/2 quarts then check the stick. If stick shows full, the so be it. Believe the stick.

Be sure to get the right number oil filter. There was a change. Not sure what year it was. Stay away from Fram.

Best place for info is
http://bobistheoilguy.com/
Lots of discussion. But can be overwhelming at first.
 

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I change it on my GPas 07 5.3 Avalanche, no big deal at all. Same as changing oil in anything else. Never Fram filters, ACDelco or NAPA Gold, nothing else IMO!
 

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The correct oil filter is ACDelco PF46 for the record.

Advice I can give on changing the oil filter is that a lot of oil comes out when you take it off, so what I do is unscrew it little by little and let the oil run over the side. You WILL get it on your arm, so be ready. And yeah, the oil really does come shooting out of the drain plug, so I try to hold the pan right up to it.
 

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The correct oil filter is ACDelco PF46 for the record.

Advice I can give on changing the oil filter is that a lot of oil comes out when you take it off, so what I do is unscrew it little by little and let the oil run over the side. You WILL get it on your arm, so be ready. And yeah, the oil really does come shooting out of the drain plug, so I try to hold the pan right up to it.

You can sucessfully use the PF61 as well...

If you are lucky, look for the PF44 (short) & PF59 (long), those are the old GM mfg filters, whereas the PF46 & PF61 are made by champ..
 

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I've read the that oil REALLY comes outa there. Usually overshoots the drain pan. Also have read about people having different readings as related to the 6 quart fill. Most people will put in 5-1/2 quarts then check the stick. If stick shows full, the so be it. Believe the stick.

Be sure to get the right number oil filter. There was a change. Not sure what year it was. Stay away from Fram.

Best place for info is
http://bobistheoilguy.com/
Lots of discussion. But can be overwhelming at first.
I've owned 2 1995 monte carlo Z34's (3.4L DOHC) and they both take just over 6 quarts of oil. Crazy.
 

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I've read the that oil REALLY comes outa there. Usually overshoots the drain pan. Also have read about people having different readings as related to the 6 quart fill. Most people will put in 5-1/2 quarts then check the stick. If stick shows full, the so be it. Believe the stick.
Actually that is incorrect. The dipstick is not certified by the department of agriculture as a scientific measuring device. Add 6 quarts if it calls for six, and where ever the oil is after that is you full mark. If you put 5.5, there is not enough oil. If you put six and its not on the full mark, then add more to get it to the mark, it will burn it off rather quickly and lead you to believe you are burning oil.
 

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on my 2003 Trailblazer- it says 7 quarts with Filter.
I change oil and filter and simply refill with 7 quarts.
where ever the oil reaches my dipstick- thats the full mark.
And I do let my oil go about 10,000 miles- with very little oil use- almost no oil used.
 

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The correct oil filter is ACDelco PF46 for the record.

Advice I can give on changing the oil filter is that a lot of oil comes out when you take it off, so what I do is unscrew it little by little and let the oil run over the side. You WILL get it on your arm, so be ready. And yeah, the oil really does come shooting out of the drain plug, so I try to hold the pan right up to it.

I agree with all your tips. The oil filter is very easy to get to from the drivers side. You might want to get a wrench that doesn't look like a cup though- mine slips alot. I also don't understand why the plug is pointed back vs down!! I always get some oil somewhere where it isn't supposed to be!
 

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6 quarts in it, and it uses a 46 filter, or you could use a 59, both work, and doesnt seem to change the amount of oil in the engine.

easy to change oil on it, actually you dont even need jack stands or anything.

uses a 15mm drain plug bolt.
 

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Actually that is incorrect. The dipstick is not certified by the department of agriculture as a scientific measuring device. Add 6 quarts if it calls for six, and where ever the oil is after that is you full mark. If you put 5.5, there is not enough oil. If you put six and its not on the full mark, then add more to get it to the mark, it will burn it off rather quickly and lead you to believe you are burning oil.
I just changed the engine oil for the first time on my 2007 5.3L Sierra and I put 6 quarts but the dipstick is about a 1/2" past the fill line. You're saying this is ok? Or should I let some oil out until it reaches the fill mark? The manual says you could damage the engine if you fill it past the full mark.
 

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on the older trucks, before the GMT 900, ALL FACTORY plugs were 15 mm.

07 hit and the new ones now have a 13mm. also includes some odds and ends. you may run across a truck or 2 that has a 13mm in it, GM decided that day they wanted to put a 13 on it instead of a 15.
 

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yes. all 5.3 in the trucks take 6 quarts. drive it and then check it. let it circulate. also it depends on how much you drained.

4.8 -6.0 takes 6 quarts.
8.1 gets 6.5 quarts.
 
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