calling all LS1 owners...

since the new motor before my cam install, my car burned 0 oil. I have always ran mobile 1, 10w30 through it…then I had the cam/valvetrain/ported high pressure oil pump and Im running mobile 1, 5w30 and the car is burning oil. Where its going is beyond me. It doesnt smoke on start up, idle, driving, WOT…nothing. Their is also literally no carbon build up on my exhaust tips compared to my other motor where I had to clean up my exhaust tips every 5 days from them turning black…

I was told by the guy that did my tune/cam install I could need a catch can and its blowing through my PCV into my throttle body and its just burning it up…

when I mean the car is burning oil, I mean half a quart every 1000k.

I took off my TB and shined a flash light to see if inside my intake manifold was coated with oil and it looks like it is, but its hard to tell…if it is, it is flowing through the PCV into the TB.

I know the LS1’s are famous for burning oil so im not that worried about it…yet

get a new pcv valve.

put a baffle on the inside of valve cover.

It didnt smoke but there was tiny little drops on the ground when i would leave it sitting. I replaced the intake manifold gasket and no more leaks. Not saying that’s what it is. But my car stopped smelling like oil as well.

mine doesnt smell like anything other then gas when cars are behind me because I have no cats

also, everything under my car is bone dry…you havent been around on this site long enough to know but I had a brand new LS1 long block from GM installed a few months back and now I have 13k on it…cam has been in for 3k.

get a better oil that dont break down and is thicker every lsx motor i see is about 1-2 quarts low between oil changes if ya run syn stop at the shop and get our b-g oil its awsome i dont burn any in between changes and its about what mobil 1 costs and is way better …avoid royal purple as it is garbage seein as ya only run it in the summer or warm weather run 20-50 in it

You should be fine. Prolly pcv. Man i want a Ls1 so friggin bad. I better start saving $$$$. But I do like my mpg right now since the gas prices are going up. But friggin LS1’s rule.

Run a heavier oil 5W30 is kinda light for a big motor and higher temp weather…

I’d run 20w50 like jon said

Also MK4 30r is right to catch can is needed

No oil usage I have ever seen from the cammed ls1’s I have encountered

Switch to Rotella 5w40. My car uses Mobil 1, but not a drop of Rotella.

i have one cheap if you want one

ls1’s do burn oil, especially after header swaps, but like brett said, check your pvc valve, if it bothers you that much upgrade to an ls6 pvc system or get a catch can, all that oil is going back into your intake

how much does that shit run? I have about 1k on my mobile 1 since last oil change.

Mobil one sucks now. They changed the formula on it and it has not been the same since

does the pvc have a baffle on the valvle cover ? i had this problem b4 in my striker motor. valve cover had no baffle and at high rpm’s would drink oil like no tomorrow.
so i built a baffle to stop opil from splashing towards it and it solved the problem. this is a good cheap quick fix.

im not sure on how the PVC is setup…never had one apart other then the PCV itself to change it out.

but from what I saw its basically a hose out of the valve cover, PCV valve then goes into the Throttle body.

when I checked my PCV valve last week, it was saturated with oil.

just pcv out and look to see if there is a lil plate down below it. u can stick ur finger in it like it was the stinky hole and feel around too. lol

My PCV hose isnt big enough to stick any of my fingers down lol

the PCV itself is only 4" away from the throttle body where it goes in and before the PCV about 11" to the valve cover.

also, WOT my oil pressure is 80psi, so im sure oil is flowing like crazy through the PCV.

still should be able to pull it out and possibly peep the hole to see if there is a baffle.

catching it is okay, but it still leaves the crank case. This isnt all that uncommon. Yiour probably on the right trail. I only have breathers now.