What engine oil and viscosity are you using?

[GriffX]

Don't ever use 5W-40 in these 4.6 L engs. It's much too thick at startup. Folks have damaged the engs using 5W-40.

I'm wondering why the coyote can take 5w20 and 5w50? Stronger oil pump?

 

[MrBhp]

I'm wondering why the coyote can take 5w20 and 5w50? Stronger oil pump?

Clearances

 

[GriffX]

Clearances

Does it mean you can use 5w20 in an 5w40 designed engine? Both with API SN.
Back in 2007 it was impossible to get 5w20 or 5w30 non Diesel LowSAPS oil in Germany.

 

[MrBhp]

Does it mean you can use 5w20 in an 5w40 designed engine? Both with API SN.
Back in 2007 it was impossible to get 5w20 or 5w30 non Diesel LowSAPS oil in Germany.

No. Engines are set up with oil viscosity requirements at the time of design/blueprint. If you were to run 20 in a 40 design, you probably would not hurt anything, until you leaned on it. In that instance you would have abnormally low oil pressure. There are exceptions to the rule, however. My son's RS is designed for 5w50. He is pushing the limits of the stock block/internals at his current 515 whp. His tuner has him running straight 50w racing oil. Which means proper warm up before driving. He has a block heater to keep from damaging it in the winter.

 

[GriffX]

No. Engines are set up with oil viscosity requirements at the time of design/blueprint. If you were to run 20 in a 40 design, you probably would not hurt anything, until you leaned on it. In that instance you would have abnormally low oil pressure. There are exceptions to the rule, however. My son's RS is designed for 5w50. He is pushing the limits of the stock block/internals at his current 515 whp. His tuner has him running straight 50w racing oil. Which means proper warm up before driving. He has a block heater to keep from damaging it in the winter.

Thanks, that is why I don't understand that the normal S550 uses 5w20 and the performance package gets 5w50 with no further modifications of the engine. Maybe it is a special formulation? I used the 5w40 only one summer in 2007 and had to drive through city congestion every day during warm-up, so the risk was not so big (I hope).

 

[Robert Larimer]

The driver's side is where the intake manifold vacuum (naturally-aspirated engine) draws oil vapors from the crankcase via the PCV hose. On the passenger side, the vacuum under the valve cover (again in a naturally aspirated engine) pulls in fresh air from the intake tube in front of the throttle body. That should be oil free unless you have piston ring/bore blow by. Therefore a passenger side oil catch can is overkill though there's no harm in putting one there anyway.
Keep in mind that you need 5/8" rubber hose plus catch can fittings on the driver's side, and 3/8" rubber hose plus catch can fittings on the passenger side

Unless your Stang is right hand drive I think you got it backwards. The side with the PCV valve is where the catch can is most effective and it is on the passenger side on my 2012 Cyclone. The driver side hose sucks air into the engine and will not have any oil. Is that reversed on the 3 valve?

 

[SVT Rider]

Unless your Stang is right hand drive I think you got it backwards. The side with the PCV valve is where the catch can is most effective and it is on the passenger side on my 2012 Cyclone. The driver side hose sucks air into the engine and will not have any oil. Is that reversed on the 3 valve?

The OP has a 4.6L from the 2005-2010 generation of the S197...that Modular engine has the valve cover without the valve on the Driver's side: so the catch can goes on the driver's side. You are correct that on the 5.0L Coyote engine the valve is swapped and the Catch Can should go on the Passenger side. Not sure about the V6 Cyclone on the 2011+ S197.

 

[Robert Larimer]

The OP has a 4.6L from the 2005-2010 generation of the S197...that Modular engine has the valve cover without the valve on the Driver's side: so the catch can goes on the driver's side. You are correct that on the 5.0L Coyote engine the valve is swapped and the Catch Can should go on the Passenger side. Not sure about the V6 Cyclone on the 2011+ S197.

On the 3.7 V-6 the PCV valve is on the passenger side and that is where the catch can goes. The PVC valve controls the evacuation of crankcase gases and leads to the intake manifold after the throttle body. The drivers side has a hose with no valve and is used mainly for intake air into the crankcase so a catch can is useless.