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Old 12-30-2006, 05:50 AM   #1
Cusson
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Default Synthetic vs Non-Synthetic Oil For Turbo Installation

im installing a new vf34 tomorrow and i need to break it in; ive read mixed things about using synthetic or non-synthetic oil. which is the BEST way to go? i want to make sure this install is done right.

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Old 12-30-2006, 09:09 AM   #2
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If you go to boostplanet.com and read the install instructions he specifically says not you use synthetic oil for break in. Boost planet is Deadbolt.

Tony
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Old 12-30-2006, 09:37 AM   #3
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Quote:
Originally Posted by Turn in Concepts View Post
If you go to boostplanet.com and read the install instructions he specifically says not you use synthetic oil for break in. Boost planet is Deadbolt.

Tony
exactly what i was going to say
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Old 12-30-2006, 09:51 AM   #4
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It really should not make any difference to a turbo. The turbos that have journal bearings have no direct bearing contact when they are running (only on start up). Once the turbo is spinning, the shaft and journal bearings float on a dynamic oil cushion.

On the roller/ball bearing styles you have a high percision bearing that should not need any breakin as they are manufactured to very high tolerances.

Unlike an engine, that has wear parts like piston rings, and lots of low precision insert bearings there is really not a lot of breakin required other than to ensure that the turbo is properly primed with oil and not beaten on hard for the first few minutes of run time.

Since synthetic oils have higher film strengths and more resistance to break down, they would give you more safety margin if there is some poor lubrication during the first start up.

I've started rebuilt turbo's on synthetic oil with no problems at all.

Just use the oil you normally use in the engine, and take the time to build oil pressure before you start the engine. A turbo spins at about 20,000 rpm just at idle so any problem with initial oil supply can cause damage quickly.


Larry
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Old 12-30-2006, 02:31 PM   #5
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Thanks Hotrod.
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Old 12-31-2006, 09:27 AM   #6
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Read the break in procedure from deadbolt, for your own knowledge.
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Old 12-31-2006, 03:48 PM   #7
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Quote:
Originally Posted by hotrod View Post
It really should not make any difference to a turbo. The turbos that have journal bearings have no direct bearing contact when they are running (only on start up). Once the turbo is spinning, the shaft and journal bearings float on a dynamic oil cushion.

On the roller/ball bearing styles you have a high percision bearing that should not need any breakin as they are manufactured to very high tolerances.

Unlike an engine, that has wear parts like piston rings, and lots of low precision insert bearings there is really not a lot of breakin required other than to ensure that the turbo is properly primed with oil and not beaten on hard for the first few minutes of run time.

Since synthetic oils have higher film strengths and more resistance to break down, they would give you more safety margin if there is some poor lubrication during the first start up.

I've started rebuilt turbo's on synthetic oil with no problems at all.

Just use the oil you normally use in the engine, and take the time to build oil pressure before you start the engine. A turbo spins at about 20,000 rpm just at idle so any problem with initial oil supply can cause damage quickly.


Larry
As always, good information.
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Old 12-31-2006, 05:56 PM   #8
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when i got my new vf34 i used castrol dino oil for 3000 miles then went back to mobil 1 synthetic... runs like a champ
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Old 12-31-2006, 07:27 PM   #9
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Every place says something different about using synthetic oil to break in a turbo, good and bad. However, to my knowledge NO company has said that dino oil is bad for break in. I guess its a matter of preference. I always break in motors/internals on dino, so mine will be broken in on dino.
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Old 12-31-2006, 07:57 PM   #10
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Yeah im 3k miles on dyno now mostly do to my motor problems.

I could have sworn DB said to use normal dyno for 150-200 miles just as im possitive garret turbos aslo says to use dyno-oil with their turbos.
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Old 12-31-2006, 08:44 PM   #11
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will i just put synthetic in the car and everything seems fine; im not worried
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Old 12-31-2006, 11:01 PM   #12
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if ur car stock is running synthetic , i dont see a problem , ive been running synthetic ONLY in my car even with my new turbo. 7k miles and kickin
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Old 12-31-2006, 11:31 PM   #13
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Pre-priming the oil system and turbo are probably FAR more important than the particular type of oil used.

Turbos have been used on everything, running all weights and types imaginable.

Use new oil, prime it, be happy. If it's good enough for your engine, it's good enough for your turbo.
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