If you had to choose 1 oil and the only visible spec was....

[Darryl]

Ok, 2 quarts of Synthetic 10w30 oil in unmarked containers.

One has a "CI-4" rating, the other has an "ACEA A3" rating, that's it.

Which oil do you choose to put in a gas, V6 truck engine for 5,000 OCI's?? And why! (temp 35f-112f)


Darryl

[ March 28, 2005, 04:56 PM: Message edited by: Darryl ]

 

[C4Dave]

Either one will work.

 

[Gary Allan]

Well, I haven't followed the different ACEA ratings and such ..but I'll tell you if I ran into a synth in the USA that meets CI-4 specs in a 10w30 ..I would doubt the label if it was sold south of the Canadian border ..or didn't have an Amsoil label. Amsoil is the only synth that I know of south of the boarder that has a CI-4 rating and isn't a 5w-40.

Was this a trick question???

 

[T-Keith]

Both are probably overboard for such an application, but I guess I'd chose the A3 one, unless it was a sludge producing motor.

-T

 

[Darryl]

No it's not a trick question, and it's certainly not AMSOIL!

I'd rather not say what 2 oils I'm deciding on, but one is sort of green, and the other is sort of purple.

Darryl

P.S. I know the green one is a 0w-30, I asked about 10w30 because thats the viscosity of the purple one!

[ March 28, 2005, 05:33 PM: Message edited by: Darryl ]

 

[Gary Allan]

quote:

---

and the other is sort of purple.

---

Ah ..boutique CI-4 ..for those with discriminating tastes..

 

[bulwnkl]

Myself, I'd pick the ACEA one without knowing anything about the truck or usage.

You know, that's interesting. There are several common dino CI-4 oils in 10W30, but no common synthetics that I know of. Hmmm...

 

[Palut]

If the oil ONLY had a CI-4 rating, then I would not use it in a gas engine. CI-4 is only suitable when accompanied by the appropriate gas engine rating.

According to their website, Redline's 10w30 is CI-4 rated.

 

[bulwnkl]

Wow, I knew that

Guess I'm getting forgetful..

 

[blupupher]

quote:

---

Originally posted by Darryl:
...
I'd rather not say what 2 oils I'm deciding on, but one is sort of green, and the other is sort of purple.


Darryl

P.S. I know the green one is a 0w-30, I asked about 10w30 because thats the viscosity of the purple one!

---

Strange, I just drained out some GC and put some 10w30 RP in. I am doing an Analysis on both to see which works better for me.

 

[wavinwayne]

inny minny miny mo; pick either one & you're good to go.

 

[Bio-T]

I have 2 diesel trucks so the CI spec is a must for me, and is also works super in a spark plug engine.
The other problem is my AZ does not carry the Green and the Purple is $4.29 and API approved and available locally.

 

[radiometer]

I'd definitely go for the ACEA A3 or A3/B3 or the new C3. That's largely because I like the higher HTHS.

As for the Why(?). Even though my engines are not high performance I figure if the A3 holds up and protects well under such grueling conditions it'll have an easy chore of protecting them. In other words, just a tad overkill on protection.

 

[Darryl]

Thanks to you all! I was just trying to get a feel for different opinions regarding the A3 & CI-4 spec,
while trying to keep personal preferences about the oil brands themselves to a minimum.


Obviously, I'm choosing between GC and Royal Purple 10w30

Darryl

 

[Last_Z]

I would go for the CI 4, because it probably meets ACEA A3 too.

 

[Ken2]

CI-4 is for diesels only, unless it also has a gasoline engine spec on the label.

ACEA A3 is their toughest gasoline engine oil spec.

Go A3.


Ken

 

[TooSlick]

I'd want ACEA A3 - and ACEA B4, to get the added detergency needed for TDI diesel applications. Very useful in any long drain application as well....

TS

 

[haley10]

GC = ACEA A3,B3,B4