Do synthetics actually suck?

[Jay4200]

I found this very interesting:

http://www.bobistheoilguy.com/images/lucas/lucas.htm

While it is about an additive, it plainly shows that dino oil is superior to synthetic (both with and without additive). I found of particular interest that the extra slipperyness of the synthetic causes it to slide off parts faster, giving less start-up protection. That slipperyness also prevents the synthetic to migrate up during low RPM use. The synthetic seems to be prone to foaming during high RPM service too. These boundary conditions are specifically where the synthetics tout themselves as being superior to regular oil, but it sure doesn't seem that way. This article is about gear oil, but I'd believe that the basic theories apply to motor oils and especially hydraulic/tranny fluids too.

Personally, I've never used synthetic oils - and frankly, I'm in no rush to try them out.

Jay

 

[kensfarm]

Interesting to see....

 

[kenmac]

all synthetic oils like dino oils aren't created equal. In the test he only tested 1 brand synthetic . Who knows the make up of that synthetic ?

 

[CT_Tree_Guy]

My gut feeling about bobistheoilguy.com is that bob is NOT the oil guy. I could be wrong, but this sounds like some of the worst nonsense I've heard in a while. I'll check out what he says to say with an open mind, THEN hang him. /forums/images/graemlins/laugh.gif

 

[_RaT_]

I'd agree. There is way to much evidence that runs contrary to that. The question of the superiority of synthetic is not at issue with me, its whether my needs, need it. I must agree however that if I can go for longer drain times and have roughly the same costs, I will go to synthetic if purely for the enviromental and time saving benefit of it. I am routinely making trips to dump 5 gallons of used motor oil to my nearby auto parts supplier.

 

[Sully2]

</font><font color="blue" class="small">( I'd agree. There is way to much evidence that runs contrary to that. The question of the superiority of synthetic is not at issue with me, its whether my needs, need it. )</font>

My sentiments exactly!

 

[kenmac]

One would think he has a stake in lucas . As Elmer Fudd would say . there's something screwy going on around here /forums/images/graemlins/grin.gif

 

[kenmac]

Come on over Rat .I just ordered a case of Amsoil . Want the # ?/forums/images/graemlins/grin.gif You will save money along with time , but you know that.

 

[robison]

30 years ago there were plenty of people telling us how non-detergent oils were stronger and better; detergents would ruin motors, etc.

Where are non-detergent oils today?

 

[ronjhall]

In my 25 year old lawn mower engine. /forums/images/graemlins/blush.gif/forums/images/graemlins/grin.gif