South Louisiana

TypeOne · 10-18-2011, 03:50 PM

Cooler oil = more protective and last longer.

Those not running a cooler that see temps get above 230*f should change their oil more often because the breakdown process will occur sooner.

I change my oil about ever 2900-3100 miles, with a new filter. In addition, I'm going to be changing my gearbox and rear diff fluid again very soon. I changed my trans fluid to the MT85 and found a MASSIVE improvement over the stock stuff. The shifter would feel notchy and such when it was cold, but after the fluid change it'd all butta!

PaulZ370 · 10-18-2011, 09:12 PM

Quote:

Originally Posted by TypeOne

Cooler oil = more protective and last longer

Hmmm... Not quite. I'd have to put a little caveat on that Dave. Oil that is too "cold" might actually cause harm to the engine (too thick, not flowy enough, cannot react fast enough to sudden acceleration/ high revs, etc, thereby resulting in too little protection). I was seriously torn between driving in lower gears (higher rpm's) to warm up the oil on cold mornings, or driving in higher gears (lower the rpm's) to protect my engine seeing that my oil is cold...! I couldn't decide what it is that I needed or wanted to protect more..?? (I know, I tend to over-analyze, I know...that is the curse of being an engineer)!

Anyway, I finally decided to park the Z in the Garage and drive the Titan daily back and forth for the seven miles to where I park from now till the weather warms up again - and then maybe. I think I'll keep my baby for weekends and fun drives or whenever I just can't take it anymore and just HAVE to drive her.... I wonder if I can make it a couple of days even...!!!

TypeOne · 10-19-2011, 10:05 AM

Quote:

Originally Posted by PaulZ370

Hmmm... Not quite. I'd have to put a little caveat on that Dave. Oil that is too "cold" might actually cause harm to the engine (too thick, not flowy enough, cannot react fast enough to sudden acceleration/ high revs, etc, thereby resulting in too little protection). I was seriously torn between driving in lower gears (higher rpm's) to warm up the oil on cold mornings, or driving in higher gears (lower the rpm's) to protect my engine seeing that my oil is cold...! I couldn't decide what it is that I needed or wanted to protect more..?? (I know, I tend to over-analyze, I know...that is the curse of being an engineer)!

Anyway, I finally decided to park the Z in the Garage and drive the Titan daily back and forth for the seven miles to where I park from now till the weather warms up again - and then maybe. I think I'll keep my baby for weekends and fun drives or whenever I just can't take it anymore and just HAVE to drive her.... I wonder if I can make it a couple of days even...!!!

Paul,

"Cooler" oil as in, normal operating temps... as in temperatures that are below 240-250*F. Obviously COLD oil isn't good, but generally speaking oil that is 200-220*F offers better protection compared to oil that is 30*f hotter.

Now it's all also relative to WHAT type of oil you use... so it is a little more complicated.

windex · 10-19-2011, 02:13 PM

Quote:

Originally Posted by PaulZ370

Hmmm... Not quite. I'd have to put a little caveat on that Dave. Oil that is too "cold" might actually cause harm to the engine (too thick, not flowy enough, cannot react fast enough to sudden acceleration/ high revs, etc, thereby resulting in too little protection). I was seriously torn between driving in lower gears (higher rpm's) to warm up the oil on cold mornings, or driving in higher gears (lower the rpm's) to protect my engine seeing that my oil is cold...! I couldn't decide what it is that I needed or wanted to protect more..?? (I know, I tend to over-analyze, I know...that is the curse of being an engineer)!

Anyway, I finally decided to park the Z in the Garage and drive the Titan daily back and forth for the seven miles to where I park from now till the weather warms up again - and then maybe. I think I'll keep my baby for weekends and fun drives or whenever I just can't take it anymore and just HAVE to drive her.... I wonder if I can make it a couple of days even...!!!

Paul,
You don't have a thermostatic sandwich plate? Might be a good idea to get one installed and not have to worry about it at all.

PaulZ370 · 10-19-2011, 07:28 PM

Quote:

Originally Posted by windex

Paul,
You don't have a thermostatic sandwich plate? Might be a good idea to get one installed and not have to worry about it at all.

Funny thing, I did not see anything about the thermostatic plate till after I bought the system.

I am just too anal about everything - have no clue how Nancy puts up with me!

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10-18-2011, 03:50 PM	#1 (permalink)
TypeOne A True Z Fanatic Join Date: Jul 2010 Location: Baton Rouge, LA Posts: 2,682 Drives: BSM 370 Rep Power: 1851	Cooler oil = more protective and last longer. Those not running a cooler that see temps get above 230*f should change their oil more often because the breakdown process will occur sooner. I change my oil about ever 2900-3100 miles, with a new filter. In addition, I'm going to be changing my gearbox and rear diff fluid again very soon. I changed my trans fluid to the MT85 and found a MASSIVE improvement over the stock stuff. The shifter would feel notchy and such when it was cold, but after the fluid change it'd all butta!