New formulation for the Enzo

Thanks for your posts.

Best

 

No problem - glad to help people where I can.

 

HI George,

No problem. I'm not sure what you mean when you describe "60W vs 65W" as these grades don't exist (you don't add the W (winter) grade to the high temperature grade). If you want me to provide a quick summary of how the viscosity grades work then please PM me and I will be more than happy to get back to you.

To generalise I would say that with the many advances over the last 20 - 30 years in lubricant technology it isn't necessary (bacause of the advances) and I wouldn't recommend using anything higher than a 10W - XX if you regularly use your car in cold weather (circa freezing temperatures). Hence in my personal opinion a 15W - XX wouldn't really be advisable in this situation as there are usually better options available (5W 50 or 10W 50 for example in your case). Alternatively you could go for a 10W 60 like I use!

 

Well you can find these oils at walmart under the names of "Crisco", "Mazola"............

great oils for french frys and NOTgreat for protecting engines

 

Which is of course why they don't pass any of the standards for motor oil.

 

Thanks Jon. The last three weights 10W-50, 5W-50, and 10W-60 all sound very good to me. Merry Christmas and a Happy New Year.

Ciao,
George

 

You are welcome George. Happy Christmas and New Year to you also. We are having a bit of snow in the UK at the moment so it is certainly starting to look and feel like Christmas!

 

Thank you so much jon, I feel much confident using the Redline 5w50 now

 

Tribology is such an odd name for this field of study, makes me think of something else entirely not related to oils.

Always much controversy.

My friends...The Trouble with Tribology:
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But, as I explained before, and you never gave a credible response:

{ begin question
Why do you think that an oil at 285dF with a viscosity of 4.2cP entering an engine at 260dF block temperature flowing at 5 gallons per minute and a block temperature of 260dF is arriving at the journal bearings with a viscosity significantly different from 4.2

when compared to

an oil at 305 dF with a viscosity of 4.2cP entering an engine at 260dF block temperature flowing at 5 gallons per minute and a block temperature is arriving at the journal bearings with a viscosity significantly different from 4.2

In the 3 seconds the oil is in contace with the 260dF block temperature between the gauge and the bearing?

end question }

So why do you think that one oil at 4.2cP is going to arrive at the journal bearing significantly degreaded from 4.2cP while another oil that will not.

This is not a question about how many gauges are required. We both agree that the engine inlet temp is different from the oil at the bearing inlet, and we both agree that the oil picks up a big dose of heat on the way across the bearing (and looses that heat in the oil radiator).

 

If they are truly both 4.2cP I would expect they would both be just fine.....but I'm not convinced they are both 4.2cP.


When the factory is running an engine on the dyno they generally instrument the sh*t out of it so they know exactly what is going on and they use the data to select the correct weight oil and size the oil cooler and all that fun stuff. The temp vs Vs graphs are not the same shape really for the oils you are comparing so if you are off even 1 degree on the temps you have the wrong viscosity point for the factory oil and therefore the wrong point on your replacement oil.

There simply is no way to know the temp at the bearing without a temp sensor at the bearing so the methodology you’re using is more of a guess than it is engineering. The fact that your methodology says go thinner when the accepted answer is to consider the factory spec as a minimum and to use a thicker oil for sever duty should be telling you you’ve made and error. As pointed out all ready pretty much every manufactured that offers an up-rated engine as specifies an oil with an increased viscosity to handle the additional loads should also be telling you you’re made an error.

Further, as I pointed out the last time we had this discussion reducing the oil viscosity as you’ve done completely defeats the fail-safe relationship between oil and coolant temps that is designed into the system by the factory.

It’s just a bad idea all around…..at least you are using a proper motor oil instead of cooking oil though, I’ll give you that at least

 

I would not call RLI cooking oil.... More like what enviro freaks put in there Prius while they are out to save the planet

 

Absolutely! What I have been saying for the last week!

 

Sorry rather take oil out of the ground, and seriously wish governments would ban the using of crops for anything but feeding people. Note the use of waste is a different thing.

I personally would hang my head in shame trying to make money from something that directly causes others to go hungry.
Pete