Anyone using Castrol Edge Sport 0w40

[ALBundy]

No t2, we are not using an manual box here, instead a pressurized torque converter. So using lighter or smoother oil would contribute some differences in the rpm becoming a little lower at certain speed. Even putting in a voltage stabilizer would do the same. We can even experience transmission shift delay due to the improve torque. You will notice more frequent down shift in a hot afternoon versus a cool rainy morning.

The torque converter works on hydraulic pressure. Perhaps (but unlikely) certain transmission oil may help to lower the "lock-up" point of the converter.

But here we are talking about engine oil, which has no relation to transmission torque converter (using different oil).

The engine's RPM in relation to gear ratio is fixed, no matter what oil is being used.

Cheers

 

[t2ribena]

The torque converter works on hydraulic pressure. Perhaps (but unlikely) certain transmission oil may help to lower the "lock-up" point of the converter.

But here we are talking about engine oil, which has no relation to transmission torque converter (using different oil).

The engine's RPM in relation to gear ratio is fixed, no matter what oil is being used.

Cheers

agreed...the engine does not have any viscous coupling component in it which would make the engine speed varies according to the fluid used...in this case for the Auto tranny the variation comes from the torque converter which is a type of viscous coupling that depends on the fluid used but not related to then engine oil used...:top:

 

[astroboy]

Anyway, what I'm trying to establish here is the following is greatly possible. I have even experience similar result (lower rpm) by adding Voltage Stabilizer.

had my engine oil changed this afternoon. well, not too bad. This oil is thicker compare to the previous ones. Travel at 120km/h, the rpm is a hair close to 2500. The previous if i not mistaken, is lower than that about 2350-2400rpm.

Taking from 120 to 160 is somehow not as fast as i wish to, felt a bit heavy...

Will see in a couple of days time, if not like it will drain out.

 

[ALBundy]

Anyway, what I'm trying to establish here is the following is greatly possible. I have even experience similar result (lower rpm) by adding Voltage Stabilizer.

What could have happened with Spaceman, is previously at that particular speed the car could be running in 5th gear, and now possibly in 6th gear. It happened to me also, till I shifted it to "manual"

Cheers

 

[astroboy]

What could have happened with Spaceman, is previously at that particular speed the car could be running in 5th gear, and now possibly in 6th gear. It happened to me also, till I shifted it to "manual"

Cheers

I know engine oil viscosity should not interfere with the transmission ratio, thus rpm-to-speed ratio should remain. Can it be with the thicker old, the engine runs hotter, thus spreading heat to ATF and making ATF to be less effective?

 

[B33mEr]

I know engine oil viscosity should not interfere with the transmission ratio, thus rpm-to-speed ratio should remain. Can it be with the thicker old, the engine runs hotter, thus spreading heat to ATF and making ATF to be less effective?

Whoa!!! my brain just exploded hehehe

 

[astroboy]

Whoa!!! my brain just exploded hehehe

I know.. when we tried to provide our observations, they will be those who question the logic of it.. I wish I have the answers for all.

I now want to ask, how does kick down sensor works? .. meaning how hard one need to press on the gas pedal to trigger down shift? If not wrong, vacuum sensor involved. Would using thinner oil alter the kick down threshold? and why?

P/S: Those with weak brain, please stay away..

 

[B33mEr]

....

P/S: Those with weak brain, please stay away..

Wakakakaka ... :aetsch:

 

[astroboy]

Wakakakaka ... :aetsch:

Hahaha! If you can't convince them, confuse them.. :listen: