Does Thin Oil really Lubricate better?

[saberz]

I'm confused. I'm asking about it :|

Oh wait NVM, about the AEhass article. I think it's commonly stated here that while he brings up good and interesting points, a lot of it is really his opinion and experience with it.

Also when you read the article, don't go putting 20weight in your car if it doesn't call for it. He isn't responsible should anything go awry.

 

[lexus114]

 

[Tempest]

Originally Posted By: hemitom
Well Tempest, you explain how its higly flawed, You have the balls to call him out, you must have them to test oil on your high end cars as well, so have at post your results.

Not high end cars:
http://www.bobistheoilguy.com/forums/ubb...rue#Post1931927

And as stated, he is NOT racing his cars with the thin oil. The car manufactures have to account for all conditions with their cars and high performance cars are often used on a track, hence the thick oil recommendation.

 

[hemitom]

I think most posters here are not racing there cars to work every day. In most cases, not all a thinner oil should provide for less wear on your engine used in normal evey day driving. there is no magic grade of oil to suit or please everyone.

 

[Tempest]

Originally Posted By: hemitom
there is no magic grade of oil to suit or please everyone.


That is why they manufacture more than one grade. Most people should just use what is recommended by the manufacturer.

 

[saberz]

I'd use what is recommended in the manual and be done with it.

 

[HangerHarley]

Originally Posted By: Quattro Pete
Originally Posted By: d00df00d

For an extreme example, there is a member named AEHaas who has used GC in his Ferrari Enzo, which specs a 10w-60.

I think he used M1 5w-20 and Redline 0w-20 as well.


I thought he put 0W-20 in his 550 and all the other Ferraris as well. And he is in Miami.

Seems foolish, but he put out a several page paper saying how even 0w is too thick at start-up, etc etc. And that seemed to be his prime reasoning for everything.

 

[Quattro Pete]

Originally Posted By: HangerHarley

I thought he put 0W-20 in his 550 and all the other Ferraris as well. And he is in Miami.

Seems foolish, but he put out a several page paper saying how even 0w is too thick at start-up, etc etc. And that seemed to be his prime reasoning for everything.

I ran GC (0w-30) in my 530i when I lived in Miami with no ill effects. This engine typically calls for 5w-40 oil in Europe, but 5w30 is also permitted. However, GC still carries the BMW long life spec.

 

[Garak]

I don't think many would consider GC too thin for most applications. Others have pointed out that it's actually quite close to a 40. Besides, it does meet a lot of stringent specifications.

 

[ItsuMitsubishi]

Originally Posted By: Quattro Pete
Originally Posted By: Anies

If you go to thick/heavy, you rob power from the engine and could potentially damage it from the extra stress caused by the weight.

Seriously? Has anyone ever heard of a documented case where using thicker oil led to engine damage due to extra stress?


Yup, oil pumps can grenade on thick oils, high RPM and nowhere to put that oil.

 

[HangerHarley]

Originally Posted By: Garak
I don't think many would consider GC too thin for most applications. Others have pointed out that it's actually quite close to a 40. Besides, it does meet a lot of stringent specifications.


Where do i buy it

I can be all over the "USA" with my car. Sure, im in NY now. But wait when i get back to my car. Ill be in the Mid-West again. West of PA.


At this point, and before i resume my reading, i shall state that I have no idea if my engine will be best served with:

1) An HM Oil,
2) an HDEO, or
3) A High Moly-type Oil like Redline, or even GC, after the VC gets pulled and it gets nice and tuned and all that good stuff.

Im at an impasse as to which way to go. Anything with KM "40" seems to make the car run nice, though 15W-50 or comparable may work too.

Difference is, im getting the VC pulled and giving everything a FULL Tune, to un-do some Beatering done on the car i got.

Most people would just buy a new one. I am not one of those.

And, with that, i do my reading.

PS: My mechanic is equally clueless, at least on anything Fluids. he would recommend Lucas to help the Oil.

And i used to listen to him. This is why i research and come up

 

[znode]

Originally Posted By: HangerHarley

Where do i buy it

[GC]


Wait until your local O'Reillys/AutoZone/AA Parts/Pepboys run a Castrol Syntec sale. Then buy ($20 in Europe) Syntec 0w30 at around $4-5/qt and enjoy the regular Joes "subsidizing" for your German oil with their purchases

of the rest of the Syntec line.

As far as the discussion, again, As thin as possible and as thick as necessary. Because ultimately a lot of flow without much film strength will always lubricate, protect, and cool better than a lot of film strength with virtually no flow, when it sludges up in seconds. Of course, the best would be using what the manufacturer recommends (and stands behind with a warranty), because the engineers have figured out the best trade-off for you. And with modern cars, going a grade up or down (30->40, or ->20, is most likely not going to hurt it very much, and has pulled out solid evidence either way.) I don't see why you would want to without solid evidence for its benefit though.

And if we really believed in "thick" and "film strength", we'll coat our engines with grease and be done with it.

 

[Quattro Pete]

Originally Posted By: znode
Originally Posted By: HangerHarley

Where do i buy it

[GC]


Wait until your local O'Reillys/AutoZone/AA Parts/Pepboys run a Castrol Syntec sale.

Never seen GC at O'Reillys nor AA. The other two stores carry it for sure.

 

[BMWTurboDzl]

Depends on application and design (ie optimium oil pressure @ operating speeds)?

Don't some F1 and Indy cars run on something like straight 10 or 20 weight oil?

 

[d00df00d]

Originally Posted By: BMWTurboDzl
Don't some F1 and Indy cars run on something like straight 10 or 20 weight oil?

I thought Indy cars run on Mobil 1 0w-40.

No idea about F1 cars.

 

[ItsuMitsubishi]

Originally Posted By: d00df00d
Originally Posted By: BMWTurboDzl
Don't some F1 and Indy cars run on something like straight 10 or 20 weight oil?

I thought Indy cars run on Mobil 1 0w-40.

No idea about F1 cars.


What? Why? Are winter starts are a big concern with Indy cars ???

 

[Steve S]

Originally Posted By: Quattro Pete
Originally Posted By: d00df00d

For an extreme example, there is a member named AEHaas who has used GC in his Ferrari Enzo, which specs a 10w-60.

I think he used M1 5w-20 and Redline 0w-20 as well.
How hot does the oil get driving to the mall on the exotics? Those things are built to go real fast for a long distance ,they are not like a Nissan 370 wanna be racer type car, they are serious go fast.

 

[Quattro Pete]

Originally Posted By: d00df00d
Originally Posted By: BMWTurboDzl
Don't some F1 and Indy cars run on something like straight 10 or 20 weight oil?

I thought Indy cars run on Mobil 1 0w-40.

No idea about F1 cars.

Straight 20 is what I've heard as well.

 

[d00df00d]

Originally Posted By: ItsuMitsubishi
Originally Posted By: d00df00d
Originally Posted By: BMWTurboDzl
Don't some F1 and Indy cars run on something like straight 10 or 20 weight oil?

I thought Indy cars run on Mobil 1 0w-40.

No idea about F1 cars.


What? Why? Are winter starts are a big concern with Indy cars ???

Why are you so concerned about the 0w and not the 40?

Or, for that matter, the rest of the specs.

Maybe its chemistry is a particularly good match for the engines and conditions. Maybe cost and availability are factors. Maybe it happens to be exactly the right viscosity. Or maybe I'm wrong and they actually use another oil. Who knows?