Another oil question

[buster]

For those concerned, I would just use a good 30 grade or add a qt of 15w50 to bump up the viscosity a bit.

 

[HayBusMan]

Tom NJ,

This site is fortunate to have your input. Thank you.

Buster and Johnny also contribute much to these forums IMO.

Jim

 

[Max_Wander]

So when it's all said and done, wouldnt the perfect oil be as thin as posible, pump easier with the strong film strength & high temp stability of a SAE30 be ideal?

I think so. And I'll gladly spring the extra $$ for a fluid that can live up to said expectations. Enter Polyol Esters High flow, shear stability, high temperature resistance? Sign me up.

 

[Tom NJ]

Thanks HayBus. Nice to know someone is reading my dribble.

Originally Posted By: Max_Wander
Enter Polyol Esters High flow, shear stability, high temperature resistance? Sign me up.


Well Max, you're preaching to the choir - I have a long time fondness for polyol esters

but the type and quantity of POE is important. If they are too thin, too polar, or too much, then there could be some issues with seals and additive response. Now a 60+% blend of the right POEs with the right PAOs with the right additives may very well approach ideal. But the price would be high and the volume low, which makes the development costs a bit tough to swallow, especially in a price sensitive PCMO market. However, in a cost sensitive market like commercial fleets, there could very well be an opportunity.

Tom NJ

 

[Johnny]

Originally Posted By: HayBusMan
Tom NJ,

This site is fortunate to have your input. Thank you.

Buster and Johnny also contribute much to these forums IMO.

Jim


Wow! I'm honored my name is in the same post as Tom NJ, though I don't know why. Tom has forgotten more than I will ever know.

 

[NHHEMI]

Originally Posted By: ADFD1
Hello, My first post here but I am a long time viewer. I find the site entertaining at times, and very informative!!!!!!!!!!!!!!!!!!!! Thanks admin for allowing me to join.

I've used the search read 100's of posts of 20 weight oil vs 30 weight oil etc. I've read about CAFE, and a lot of opinions for and against the thick vs thin oil.

Now my question: Why would an engine from 2005 that called for a 5w30 oil use a 5W-20 oil in 2007? I went so far as to see if they redesigned the engine, used a different pump, or crank, and all I could find was a different PCV valve or an EGR upgrade.

Does the engine builder think that the 5W-20 oil is now better? Is it CAFE? Are they trying to boost 5W-20 oil sales? I would like to think the mfg has my best interests at heart?

Any engineers or oil experts that can answer this?



Mainly done for CAFE standards. There are some vehicles where it has a mechanical reason too such as the Dodge 5.7L HEMI with MDS. The MDS requires a 20 weight oil for proper operation even though same year 5.7L HEMI engines wiithout MDS, and all previous year engines before MDS came out, call for 30 weight. CAFE mainly however.

 

[Tom NJ]

Originally Posted By: Johnny
Wow! I'm honored my name is in the same post as Tom NJ, though I don't know why. Tom has forgotten more than I will ever know.


Reverse the names and I would have said same!

A Mutual Admiration Society

Tom

 

[Johnny]

Tom and I are meeting in Pocono for a group hug if anyone wants to join us.

 

[Max_Wander]

can you feel the love?

Originally Posted By: Tom NJ
Thanks HayBus. Nice to know someone is reading my dribble.

Originally Posted By: Max_Wander
Enter Polyol Esters High flow, shear stability, high temperature resistance? Sign me up.


Well Max, you're preaching to the choir - I have a long time fondness for polyol esters

but the type and quantity of POE is important. If they are too thin, too polar, or too much, then there could be some issues with seals and additive response. Now a 60+% blend of the right POEs with the right PAOs with the right additives may very well approach ideal. But the price would be high and the volume low, which makes the development costs a bit tough to swallow, especially in a price sensitive PCMO market. However, in a cost sensitive market like commercial fleets, there could very well be an opportunity.

Tom NJ


Well said and agreed!

 

[Canawler]

Originally Posted By: Johnny
Tom and I are meeting in Pocono for a group hug if anyone wants to join us.

First annual BITOG symposium!!

I'm there