How much oil do you add when you change your oil and filter?

[s10blazerman4x4]

Post 800.
Just update
Oil drain plugs temp fix broke loose and i had 3 in on Tuesday 3 in Thursday
LOL When it leaks it pours oil.

[Gabe25]

OK, Here's my 2 cents. 4.5 quarts without the filter and 5 quarts with filter replacement.

[carguy0633]

After asking a few people i was told (basically garunteed, depending on what the final guy tells me ) that 5 quarts IS the correct oil fill capacity for the 97 and later models due to a slight drivetrain variation that was partially corrected with adding more oil.

[herkyhawki]

Carguy, there is no mysterious "slight drivetrain variation that was partially corrected with adding more oil." Its amazing this thread is soo long when the answer was posted on page 2.

[quote=BlazerLT
Well, in 1996+ 4.3L , the capacity went from 4.5qts to 5.0qts. This is going by the Chilton's repair manual which breaks it down year to year.[/QUOTE]


1995 and earlier have stamped steel oil pans.
1996 and newer have cast aluminum oil pans.
There is a slight difference in capacity, and that is why there is a difference in GM's recommendation starting with 1996.
4.5 qts is still correct for 1995 & older. 5 qts 96+

[blazee]

Well, I'm still going to put in the same amount as I always have, because from personal experience and what other 96+ owners have posted here..... 5qts puts it over the full mark and causes valvetrain noise.

[BlazerBoyLT98]

With my 98 I have always used Mobil1 in the 5 quart jug that I pick up from Wal-Mart (S-Mart's big brother hehehe) for $18.** and pour the whole thing in. I have never once been over the fill mark dipstick. Am I missing something here?

[carguy0633]

Originally Posted by carguy0633

After asking a few people i was told (basically garunteed, depending on what the final guy tells me ) that 5 quarts IS the correct oil fill capacity for the 97 and later models due to a slight drivetrain variation that was partially corrected with adding more oil.

Hey just to let you know, my Uncle was the line foreman for the vortec 4.3 untill it came off line at the Tonawanda engine plant9buffalo new york), not only does he know every single vaiation and specification for the motor but he also built it, but i guess that doesnt qualify him for knowing anythign about it, instead everyone just follows the book hmm. And aside from that pretty much most of my family has engineerd, built or somehow been involved in production of GM parts. Sorry for wasting your time.

[JoulesWinfield]

Originally Posted by carguy0633

Hey just to let you know, my Uncle was the line foreman for the vortec 4.3 untill it came off line at the Tonawanda engine plant9buffalo new york.

Hey, Ive got a new filter going into that plant. Filtra Systems

[westsider]

I would just like to add that my GM service manual for a 1996 says the oil capacity without a filter change is 4 quarts and with a filter change add .42 quarts. My chilton book says 5 quarts for a 96.

[SComp23]

I have a 98 Blazer, and I am about to change the oil. After I drain the oil and remove the filter, I should empty 5 full quarts of oil into the crank case, right?

[BlazerBoyLT98]

Originally Posted by SComp23

I have a 98 Blazer, and I am about to change the oil. After I drain the oil and remove the filter, I should empty 5 full quarts of oil into the crank case, right?

Correct

[magnum3456]

Originally Posted by BlazerLT

Ah, that is crankcase only which doesn't include the filter.

5.0 qts is right with filter.

so i have a 1996 LT Blazer (s-10)...so im supposed to use 5 quarts? for sure?

[pimprolla112]

Old thread man. From what there saying yes. I have a bad lifter and my gauge goes berserk when im driving, but i always used 4.5 for a 89 4x4 tbi. Never had a problem so im going to flush the sytem out and redo my rear in about a week.

[blazee]

Please avoid posting or voting in outdated threads. It merely clutters up the message board and makes it more difficult for fellow members to sort through the vast amount of information contained on the boards. If you have new and important information to add regarding a past discussion, feel free to start a new thread and if need be, add a link to the original thread.