What engine oil do you use and why, not asking which is better, just curious
 

Curious as to which engine oil everyone uses and why?

Oh god....

Mobil 1 15-50, It's worked for me for 35 years.

Ditto, Mobil 1 15-50 is available locally

Libom 2

Brad & Penn

Not another oil thread? Do search on oil and be prepared for an onslaught of info......hope your not busy for the next week.

http://forums.pelicanparts.com/porsche-911-technical-forum/367300-ultimate-motor-oil-thread-why-we-hate-cj4-sm-oils.html

http://forums.pelicanparts.com/porsche-911-technical-forum/535002-brad-penn-20w-50-good-choice-sc.html

http://forums.pelicanparts.com/porsche-911-technical-forum/579968-my-oil-looks-reddish-all-sudden.html

http://forums.pelicanparts.com/porsche-911-technical-forum/574845-what-do-you-think-oil.html

what year and model is your 911?

I use petroleum in my 1973

OK - Brad Penn

new year ..... new oil thread ??????

No !
 

Oh the humanity.....

BRAD PENN.

Finally found the ultimate -

http://www.3inone.com/files/images/3oz-8oz-92314687.jpg

3 in 1
 

just the smell of 3 in 1 brings me back to my youth,working on old schwinns.....

Veronika
 

Veronika only uses Brad Penn in her '76 911S......http://forums.pelicanparts.com/uploa...1294025538.jpg

Currently, Valvoline VR1 20w50. But I think I'm going back to the Harley Davidson 20w50. Engine seemed to run cooler and less noisy with less smoke(valve guides need attention)

Swepco 306 Supreme 15w-40

If you want to learn more about oils for our cars you should check out the links that Flieger posted.

vr1 20w50. it's available locally, decently priced and specs out to the needs of my engine (zddp).

I have it on a good authority (http://forums.pelicanparts.com/porsche-911-technical-forum/367300-ultimate-motor-oil-thread-why-we-hate-cj4-sm-oils.html) that we need not waste our good money on fancy oils....

:D ;)

http://www.buythecase.net/uploads/pr...2700069061.jpg

Oil? What?

I use a locally available oil, Agrol Super Syntet 5W-40. It's a SHPD-oil with all the right additives. I believe that synthetics are superior in many ways and I want as good lubrication as possible when the engine is cold, hence a 5W oil.

Any brand off the shelf 10w30.

Why? Best lubrication at cold start where most wear occurs and cooler operation due to less internal friction, eliminating the need for anything more than a stock fender mounted trombone oil cooler.

Cheers,

Joe
74 w/ 86 3.2

Mobil 1 15/50 always used it.

I know, I know not another oil thread but I was just curious as to who uses what brands. I am not looking at changing what I use or anything of that nature. I don't want to know who thinks what brand is best, I was just curious as to who uses what. I happen to use Mobil 1 in my 86.

Why, Brad Penn of course.


-e.

No Mobil V-twin 20-50 users out there. Thought this was a full syn designed for air cooled engines with lots of zinc. A bit pricey though

Chris
73 E

All I use is V-Twin in my race car

Royal Purple 20 50 but it's no longer on sale so I may be switching.

On the SC I ran Castrol GTX 20W50
On the 993 I run Mobil1 15W50

George

AMSOIL
AMSOIL - SAE 20W-50 Synthetic Premium Protection Motor Oil (ARO)

Hi zinc formula.

You can order from me :)

Mobile 1 15-50.
I use it on both my Supercharged 997S and my '97 911. I buy it in the 5 qt jugs at WalMart when it's on sale.
CATTMAN

I also use the Mobil 1 V twin 20w50. I get it from AutoBarn.com.

Mobil 1
 

Mobil 1 decades!

I like simple questions///(right?)


BP 20 W50,..in the South,..all year,..every 3k miles...no cold starts below 25 degrees F.....(but that;'s just me).....

Definately: no additives,....(aside from healthy injections of Techron....)

Best,

Doyle

errrr... what car?

Cliff Notes for Oil Selection
 

Cliff notes version:

Older engines (pre-mid 90's) need high levels (around 1200 ppm plus correct level of detergents) of Zinc (Zn) and Phosphorus (P) to protect cams and other high pressure surfaces.

With the introduction of roller tappets in most engines by the mid-90's, this requirement is relaxed and Zn and P levels can be reduced. The EPA pressured API to reduce the Zn and P levels to (hopefully) extend the life of the catalytic converter which is poisoned by Zn and P. They complied.

Use 20W-50 or 15W-40 oil. Brands frequently sugggested here, in no particular order, include:

Brad Penn 20W-50
Valvoline VR-1 20W-50
Kendall GT 20W-50
SWEPCO 15W-40
Royal Purple

There are others as well.

I had emailed shell about their oil and Zn and P content, received an email next day from them saying it is rated at or above 1200ppm. Ive been using Shell Rotella T 15w-40 basically since i acquired the car(10w-40 when it gets damn cold in NE). no problems yet, oil change intervals of 3-4k miles. cost is around $2.50 a quart.

Since you asked, Royal Purple..

Brad Penn 20W-50 because people I trust use it...the threads seem to indicate it works well and it is relatively cheap for me.

Swepco 306 15W-40 also seems to work accoording to the experts, a little more pricey for me. If changing oil hyperfrequently I don't think it really matters, as long as it is heavy.