camlob

HKS has a cheaper ester oil. FYI.

No HTwo O

Mobil 1 V-Twin 20W50. My UOA's support my choice:

Deriffic

I just changed my oil and it was Addinol. When I poured out the previous oil (also Addinol), it was very black and thin. Is this normal ?

justin-in-athens

Not a good sign...what weight were you using? How many miles were on it? You might consider sending it off for analysis--its pretty cheap and provides alot of info. Several companies to choose from.

Justin

haygeebaby

Brad Pit Shaun Penn - Have used in the last 3 oil changes.
Use to use Mobile 1 but changed after doing some research.
M1 is so expensive now. BP is better priced, but I can only find one shop that sells it.
It's an award winning drag car shop located in the sticks.
But I still drive there just for the oil.

trophy

I will stick with the Motul, have been running it in the car for years, and the engine condition is fantastic (100,000 km and about 80,000 km track). The tuner I use is a HKS Pro Dealer and only uses Motul in his personal and customer cars.

ginch

What do you guys think about Lubrimoly 5/40? I had it put in the last oil change I did.

No HTwo O

Could be fine. Oil gets black-ish pretty quickly. And it could be pretty "thin" in flow viscosity, if you drain it after a proper warm-up.

Miles on the drain interval? How old? Did you add any oil in between?

Blackstone can do an UOA for about $25. One test will tell you a lot, but not everything.

Flying Finn

+1

After reading an extensive motorcycle oil report a while back, I went with that for my Buell and that's also what I put in in my 993 on my last oil change.

chaoscreature

20W-50 is pretty heavy isn't it? I would think your cold startup oil circulation would be a little slow...
I used to run 20W-50 in my 64 Cadillac to keep the valvetrain from going clackety clack. On a cold morning it poured out of the bottle just a little bit better than molasses... but that was conventional oil, I haven't played with any 20w-50 synthetics.

No HTwo O

Have you every looked at Mobil Delvac 75W90 synthetic gear lube in a bottle? To my untrained eyes, it looks about the same (viscosity) as my Mobil 5W50 or 20W50 sitting on the shelf in my workshop during the winter.

911RufRT

Been very happy with Motul 300v 15-50 for my 993.

chaoscreature

Come to think of it you are right, the 75-90 synthetics are much more "liquid" than the old 80w-90 gear oils. I didn't think of that.
It's been a few years since I have touched dino oils, but that memory of turning over a 20w50 container then doing something else for a while as it oozed out of the bottle has stuck with me
Just did a bit of reading and the JASO-MA oils have no friction modifiers. I would assume that a JASO-MB oil would be the best option for automotive applications, but who makes those? Does it matter?

H.H.Chinn

+1 Motul 300v Runs much quieter and smoother!

ja78911sc

Valvoline VR1 Racing Oil (Dino) 20w50