Boosted only Oil Weight Poll

[zaquhree]

Pennzoil Ultra Platinum 10w30 for my car in FL

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[caustin69]

5W20 Mobile 1 Whipple
Any other weight causes issues with cam phase as the cam system is dependent on oil viscosity and Whipple tune is based on 5W20 from what I understand.
Change the weight = risk confuse ECU = possibly risk timing or power gets pulled?
I could be wrong but thought newest Whipple tune had some extra logic to try and compensate for errors caused by people changing viscosity?
+1 Whipple
Why run anything other than 5W20?

Good points below +1 all, yes if you are going to run a higher oil temp continuous track use then yes you might need oil that is lower viscosity at the new temperature you are running at. Since the oil cooler is built in and feed by coolant, that would mean running higher coolant temps?

If you go from 200-220 CHT of stock motor to running cooler 170-190 CHT using colder Tstat, might want to check your oil temps. If running 30-40F colder oil and also going to 40W... won't your oil pump need more torque(HP) and your flow will be lower?

This is the same thing I was told by a Ford Engineer.

 

[5.0 Steve]

I run 10w30 mobil 1 ext performance with excellent results. My car is stored during the winter months.

 

[S550BackInBlack]

5W20 Mobile 1 Whipple
Any other weight causes issues with cam phase as the cam system is dependent on oil viscosity. Change the weight = risk confuse ECU = possibly risk timing or power gets pulled?

I agree completely. Some of you may remember the cam phaser problems of the 3 valve mod motors (F150's, Mustangs) and running the wrong viscosity interfered with the phasers ability to adjust cam timing based off oil pressure. It also caused premature phaser and variable cam timing solenoid failure. Plus the tolerances of the main bearings and other various components are much tighter then the old pushrod motors that ran 10-30. Furthermore 5-20 will yield better fuel economy as well. But that's not why we drive these cars...

Then again the game does change when you add 12+ psi of boost and a shit ton of cylinder pressure. Good discussion topic fosho

 

[evo8904]

Honestly, I'm curious to what the vendors use. If [MENTION=13288]Whipple SC[/MENTION] uses 5w-20 than I will but if not, I'm sticking to 5w-30.

 

[Guard5.0]

Count me in as curious. I'm on 5w30 right now. Know some folks are using up to 50 wt.

 

[15RRGT]

5w30 mobile one
Considering 0w40
Ran the motorcraft 5/20 blend in my blown 06 for years no problem FWIW

 

[BrazukaV8]

Now I'm more confused LOL

 

[Super Werty]

Im in to see what [MENTION=13288]Whipple SC[/MENTION] says

 

[SC_Ruby]

I recently upgraded to the MC full synthetic 5-50W for my Whipple set up based off recommendation from Hillbank Motorsports. Curious to see the feedback from [MENTION=13288]Whipple SC[/MENTION]

 

[Roh92cp]

For all who are wanting to know what the best oil is for you motor you need to read this. This is the most extensive oil study and testing I've ever seen. Over 180 oils tested to the point of failure for shear protection and durability. The Most important factor in an engines oil is to protect metal parts from contact via the oil wedge effect. The oils ability to resist shear is the number one concern. This test gives every oil a shear rating at a PSI level with oil at realistic engine temps. The top brands and most expensive oil don't always produce the best protection as you will find out. It's a long read but well worth the effort if you love your motor. Oh yeah...and thin oils like 0-20 and 5-20 according to this study produce top rated shear resistance as well as faster flow through the engines parts which in effect creates better cooling and in the end better protection.

Edit: Make sure you read section 2 on oil viscosity (very important)

https://540ratblog.wordpress.com/2013/06/20/motor-oil-wear-test-ranking/

 

[Gibbo205]

Hi there

I've spoke to a few tuners and they all say to stick with the stock viscosity of 5W-20 but change the oil more frequently like every 5000 miles.

 

[JohnG]

I plan to continue to have my oil changed at the dealership with Motorcraft 5w20 full synthetic.

 

[Plimmer]

Oil spec for the track orientated Boss 302 and GT350 is 5W-50.

So if you are on a road course 50 is probably better for you, if you live life quarter mile at a time then the 20 is probably perfect.

There is another thread on the forum describing that the 20 is spec'd for best fuel economy under normal driving conditions.

 

[smokinzx14r]

I run 10w20 mobil 1 ext performance with fl500s filter ..

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