Last week when my throttle body went i noticed a very very thin amount of oil in the piping and not on the entire wall of it.Does this mean its time for a catch can or is it something worse that is happening.
Any thoughts would be helpfull and i have the greddy twins.

Thanks,Keith.

 

It's just normal blowby probably, but a catch can could only help.

 

Thanks bud cause that is what i thougt it was.

 

No prob. When it starts pooling up in your intake piping and intercooler, then you have a problem

 

It's more then likely just ordinary blowby, but the reason why you want a catch can is because oil in your charge system lowers the fuel octane rating, and therefore raises the chance of knocking

 

Like mine has Gonna go get the turbos checked out next week.

 

Thanks guys as i do not have any pooling just a very thin film.........catch can it is.

 

Your oil viscosity will have a big impact on how much oil gets past those seals too.We have found that running the Turbonetics BB turbos with anything thinner then 15/50 synthetic oil, results in some serious oil blowing past the seals in the turbo (both intake and exhaust).We did some testing and found that 5/30 is so bad you will leave clouds of smoke from your exhaust 10/40 was better but you still get oil in your intercooler piping,intercooler,etc....but no smoke out the exhaust. 15/50 resulted in no oil out of the exhaust and no oil in the pipes Ofcourse this was with the lovely weather we have here in San Diego.Your results might vary a bit if you live in a colder climate.The funny thing is that something as simple as the oil can be overlooked.

 

Of course the greddy turbos are of an older garret design i think...... i have been running 0/40 mobil1 in the maryland weather.I guess i might have to change the oil viscosity.

 

Interesting info. This is on all turbonetics turbos? You'd think a healthy model with fresh seals would do fine with standard 5w-30 and maybe down the line you'd see some blowby and then switch to a more viscous oil.

What would you recommend someone who lives in a climate that ranges generally between 30 deg F and 70 deg F run? I was planning on using a 10w-40 as that seems to be one of the most commonly accepted weights for a FI Z.

 

This might of been something I was experiencing. There wasn't smoke all the time but about once weekly, pretty bad. Like a dirty white smoke under full boost.

 

This is just something we have seen on some of our cars here at the shop.My car has 35K miles on the two turbos and this is when we did our testing with different oil weights.

 

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