The Minimum Weight Required is 10w 30, But Often Some People Are Able to Run 5W Oil in Their Cars in Below 0 Degree Temperatures, but just Remember Your taking a Risk if You Forget to change the OIl When Warmer Temperatures Come Around, Your Turbo Will Fail Quickly! If you Use too Thin of oil Weight For the Ambient Temperatures, Your Turbo can Result in Blowing Oil. Just like Engines, Turbochargers have a Required Thickness of Oil to be Used. If You Do Not Do this, Then the Next Time You Start the Vehicle up, The Turbo Internals Could Be Dry, Which can Cause the Internal Parts the Wear Out Prematurely. After You Drive Your Turbocharged Vehicle Hard, You Should let the Engine idle for 1 to 2 Minutes to Allow The Oil to Circulate Through the Turbocharger to Remove the Heat from the Internal Parts of the Turbo. Don’t Use a Restrictor with a Journal Bearing Turbo, if You think the OIl pressure is “Too High” Then a Drain with a Larger Inside Diameter. Having and Oil Restrictor in a Journal Bearing Turbo can Causes Turbos to Eventually to Blow oil, Because it Starves the Turbo Of Oil, Which Causes the Internals of the Turbo to Wear out (including the Seals). Oil Restrictor in a Journal Bearing Turbo.035” Restrictor However, Because their Cartridges Are Much Smaller, and They Can only Hold So Much Volume. The Oil Pressure Being Too High, is Never the a Problem Unless The Oil Drain is Not Large Enough To Remove the Volume That is Being Fed into The Turbocharger.
Usually Once the turbo develops some In and Out Shaft play the Seals get Worn out in the Process, Which makes the Turbo Need a Rebuild. The Oil Pressure Being Too Low, will Cause The Turbo To Wear the Internal Parts of the Turbo. Both Situations can Cause oil to Lean Past the Seals. Oil Level. The OIl Level Can Be Higher Than the Oil Seals, if You Put too Much Oil in the Oil Pan, or If the Turbocharger is Sitting to Low in Relation to the OIl Level.Blocking Crank Case Ventilation Causes the Pressure in the oil Pan to Build up, Which no Longer Allows the Oil to Drain From the Turbo Properly, Because the Crank Case is Pressurized.With new oil filling the Cartridge and the Old oil not being removed, the oil pressure builds up in the cartridge and is forced out the seals. This Causes the Oil to not Drain Effieciently and the OIl backs up in the cartridge. Aftermarket -10 an Drain Fittings are 12mm Inside Diameter. A Factory MHI Drain is 16mm Inside Diameter. Most Aftermarket Drain Fittings Have too Small of an Inside Diameter Which is Often the Problem. In This List a Lot of the Time The Turbo Can Still Be “Good” But Blowing Oil. Here is a list of Most Common Problems to Least Common in Order. To test, all you need to do is unscrew your oil cap and lightly power brake the engine to bring up boost, if the oil cap dances you know there is excessive crankcase pressure.The Most Common Response People say is Turbo Seals are Bad, But Im Going to Teach You in This Post That Often this is the most Uneducated Answer. This video below was posted by the awesome guys at it shows a simple way to test for excessive crankcase pressure. This blow-by causes excessive #crankcase pressure this pressure escapes up the turbo oil drain line and forces the oil out of the turbo seals, which will cause a turbo to leak oil. In an engine with blow-by, as ignition occurs combustion pressure escapes past the #piston rings. Excessive blow-by is generally a result of a problem in the cylinder itself or a plugged crankcase filter. ***This is one of the main causes of a leaking turbo.Įngine Problem: Excessive crankcase pressure (or #blow-by) can force the #oil to go through the turbo seals.
Thus, any restriction in the oil drain line will cause the oil level in the turbo bearing housing to rise above the oil seals and result in oil leakage into the housings. Installation/Drainage: Oil passing through the turbomust flow to the engine by gravity. FYI, most people don’t realize that a leak in the turbo is usually an installation/drainage or engine problem (such as excessive crankcase pressure) and not a problem with the turbo.
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