can anybody tell me what id the standard t3 oil feed? having fitted a new turbo and oil feed i get a touch of blue smoke on overrun. before i change the turbo im gonna check the oil control/restrictor size is apropiate. i noticed the id of the bolt AND feed hose looks to be a bit big but wanted to clarify sizes first. also could 5w/30 contribute to a bit of blue smoke. was using 15w mobil 1 but the castrol fully synth was only available in 5w. thanks for the tips