Zero10

Okay, so you're saying that a sticky oil has caused you to pick up 20HP on a motor that only produces 150?....
Sorry, but I can't even comment on that because it is so far fetched.

Running with no drag at all from oil couldn't possibly have given you more than 5HP. So, somehow Lucas Oil Stabilizer magically gave you another 15? No.

Here's a suggestion for you. Find one of those lucas oil stabilizer displays at a store, and sit there and turn the crank on it as fast as you can for 10 or 15 minutes. Now look at what is in there, compared to the other side with just normal oil.
The lucas side will be very very very foamy. Not something I want in my engine.

Lucas oil stabilizer is essentially 75W90 gear oil in a different bottle. There might be a few additives in it, but as I understand it, that is the basis of their product.

theedge

My friend and I do that everytime were in a store with that display. We stand there in line snickering and cranking the handle to watch it foam up. Get odd looks sometimes. I sure as hell dont want something that looks like a shaken up beer in my engine.

924sowner

didnt pick up much from the motor, mostly with the tranny change is where i got the gain. should have been more clear.

toddk911

Well, I did my oil this weekend wit hthe Royal Purple.

Shortly after my rebuild, I ran Mobile 1 syn 5-30 and had about 3-4 different small leaks. So on the next change I bumped up the weight and was fine.

I am now running 5-30 RP and NO leaks. So that is a good comparison on the compisiiton of the two with the same weight.

toddk911

"I've never had a leak with Mobil 1, this is total BS imo. Keep your seals in good condition and you won't have a problem with any oil."

See my post. Fresh rebuild, seals, etc. Mobile 1 leaked. Same weight Royal Purple, no leaks.

toddk911

I used to always run as heavy weight as possible in all my Porsche's that I have owned, especially living in FL. I even used to run, I think it is Valvoline's, 20-60 racing oil.

But then after the rebuild and doing more research I was infromed you should try to run the lightest weight possible as the thicker the oil the more work and load, thus friction, is put on the motor and can actually increase the heat of the motor/oil.

Can anyone confirm or give contrary views to that?

toddk911

"With regular oil changes of ~3k miles, it doesn't matter what you use; especially on a street car (dino or synthetic of the same weight). I can understand synthetic on a track car but you are wasting money otherwise. Dino oil is fine if you change your oil at regular intervals."

Consumer reports did a test on all of the major brands in NYC taxi cabs. After 3K, 6K and even up to 12K, they saw little to NO difference on the wear or state of the engines.

Their test proved A. Even in a driving situaiton of a NYC taxi the different oils did not matter NOR did changing the oil at 3K miles. However, when compared dino to syn, they saw a lot of difference.

toddk911

'Lucas oil stabilizer is essentially 75W90 gear oil in a different bottle. There might be a few additives in it, but as I understand it, that is the basis of their product."

So how would this go foamy??

Zero10

Yup, in the NYC taxi cab test, I believe they used Mobil 1, but whatever oil it was, the results were very interesting, I recall reading about that.

unfortunately I have no idea what is in their stabilizer that makes it go foamy, but it sure as hell does. I absolutely refuse to allow that stuff in my engine.

lleroyb

So far I have 1200 miles on the Redline 20w-50 and the oil pressure is still holding up. It is generally a little higher than I experienced with Mobil-1 15w-50. No leaks or ill effects so far. I will say the cold cranking seems slightly slower when the temperature is near 40 degF, as you might expect. Yesterday I added a couple of ounces to get the level to the round part of the dip stick.
Lou

LFA951

Redline is my second choice after Amsoil, better than Mobil 1...

SchnellerUmsetzer

Anybody ever ran Pennsoil 5W-20 (mineral oil)?

Short trips in the cold kind of driving?