TurboMazdaSpeed

car burns oil under boost. turbo S4 orig engine just rolled around to 145,000 kms lol, my oil seals in my engine toast or what? its not the turbo for sure because i just baught a near brand new one off a running car that did not burn any oil.

SCCAIT7

Well. If it only burns under boost.... I would say Turbo. If it burned all the time I would say seals! Just my opinion - Course --- We all know what those are like!

Run a compression test -

Jared FC

How long was the turbo off before you put it on?

TurboMazdaSpeed

the turbo came off a mint running car with super low k's and hasnt been off that long, its gone through 2 turbos in the last week this ones its third.. first one blew because it was getting old, second one blew because it was a sketchy one and it was fucked up anyways, but the reason the first 2 blew was because my only vent to my crankcase was blocked (oil filler neck one got grinded off when shortening the neck to fit the front mount intercooler piping on) so thats why the first 2 blew. i unblocked the last vent to the crankcase (the one to the left of the oil neck on the block) before i put on this mint turbo i picked up, so i know it cannot be the turbo this time... i know what it does / how the oil burns when the turbo is fubar'd. i think my engines oil control rings or whatever they are went with the last turbo.. its strange. i drove it to my martial arts classes today kept the revs under 3500 and light footed it the whole way there didnt burn a ounce of oil. im just in denial right now, lookin for some confirmation that its my engine haha... ..but hey swapping 3 turbos in one week off and on i can do it in a hour and half now by myself!