oil change question
oil change question ok so as of now i've thought that you're supposed to only have 5 qts of oil in a ls1...is that true or false?
i saw a couple of other threads and people were saying 5.5-6qts? is that with the factory oil pan?
by the way im using castrol synthatic 5-30 with a wix filter; just wanted to know what your thoughts were on that as well. thanks again guys!
i saw a couple of other threads and people were saying 5.5-6qts? is that with the factory oil pan?
by the way im using castrol synthatic 5-30 with a wix filter; just wanted to know what your thoughts were on that as well. thanks again guys!
Staging Lane
Joined: Jan 2005
Posts: 98
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From: Itasca, IL
If you don't change the filter, it might only take 5 quarts (but who would to that?)
If you're using the standard "short" filter, then that will account for the other 1/2 quart, so 5 1/2. If the "tall" filter is used, you'll need 6.
If you're using the standard "short" filter, then that will account for the other 1/2 quart, so 5 1/2. If the "tall" filter is used, you'll need 6.
Taller filter means more filtration (more/better filtered oil).I use the K&N 2600 and have had no problems.Have to fill case w/six quarts of oil tho. $.02
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LS1 have a tendency to run the pan dry when in high rpm for a period of time so i just put in about 6.5 and half in the filter and call it go to go thats just how i do it tho and works for me
whats the part number for a short filter and a long filter? or what does the long filter come off of so i can have the autozone guy run a parts search. i always get the wix filter at orielys (i think they give me the short filter every time...) so 5.5-6 qts is safe. i put 5 qts last time with a new filter so i was pretty low on oil then
Why not use the dip stick? That's what it's there for. 
consider this: what decides the full level in the oil pan? Or when you install the dipstick tube into the oil pan and make a dipstick out of a piece of flat steel so many inches long, how do you know where to put the full mark?
the answer is the full mark is as high as possible without having the crankshaft whip into oil sitting in the pan, otherwise it'll splash oil and cause aeration in the oil.
On most dipsticks on a v-8 you can go 1/4" to 1/2" over the full mark with no problems, especially if it's a measurement when the engine's cold and all the oil is in the pan.
i also happened to overfill mine last oil change because i was pouring from 5qt jugs and the following morning when I checked I was about 1.5" over the full mark. And it had felt like the engine was a little sluggish the previous day, so I just drained a little and was all good. I use a PF61 filter, the long one, and I always use at least 6 qts when refilling if I'm pouring from quart bottles.
The oil pan on the ls1 is reported to not be the greatest in high G turns and the oil can go to one side and expose the oil pump pickup, which is why roadcourse guys always add 1 extra quart. I just saw an add in gm hitech mag about a new baffle for the ls1 oil pan too.
so if you buy quart bottles, buy at least 6 and if you let the oil drain out of the pan until it stops draining then just add 6 quarts.
the answer is the full mark is as high as possible without having the crankshaft whip into oil sitting in the pan, otherwise it'll splash oil and cause aeration in the oil.
On most dipsticks on a v-8 you can go 1/4" to 1/2" over the full mark with no problems, especially if it's a measurement when the engine's cold and all the oil is in the pan.
i also happened to overfill mine last oil change because i was pouring from 5qt jugs and the following morning when I checked I was about 1.5" over the full mark. And it had felt like the engine was a little sluggish the previous day, so I just drained a little and was all good. I use a PF61 filter, the long one, and I always use at least 6 qts when refilling if I'm pouring from quart bottles.
The oil pan on the ls1 is reported to not be the greatest in high G turns and the oil can go to one side and expose the oil pump pickup, which is why roadcourse guys always add 1 extra quart. I just saw an add in gm hitech mag about a new baffle for the ls1 oil pan too.
so if you buy quart bottles, buy at least 6 and if you let the oil drain out of the pan until it stops draining then just add 6 quarts.
