Question about oil system in ICE...

Jerry P · 12-15-2004, 07:27 PM

A discussion is underway at another site I frequent, www.bobistheoilguy.com, about the wear on the ICE in a hybrid car due to stop/start cycles. Does anybody here know: is the oil pump for the ICE always pumping ( either electric or belt driven?) to keep the engine lubed prior to start up? The hot coolant storage/circulation system is great for preventing cold starts but if the oil is pumping through the engine even a few seconds before that start, it would be even better.

Hopefully someone with a lot of technical knowledge (are you out there John1701A?) can give us an answer.

Sufferin' Prius Envy · 12-15-2004, 09:50 PM

your comma (,) in your link is causing it not to work when clicked.

www.bobistheoilguy.com ,

Somehow I think the Toyota engineers figured out what is the best oil/engine rev/start timeing combination.

john1701a · 12-15-2004, 10:38 PM

The system in Prius is brilliantly simple, a setup that makes the prevention of wear appear effortless.

Rather than a traditional starter that is barely strong enough to spin the engine at a slow speed, then hoping the fuel actually ignites so the spinning can continue by the engine itself, a motor that is dramatically more powerful is used instead. It can continue providing spin power afterward too, and it does. To top that, starting isn't even attempted until oil pressure is established, since there is an even more powerful motor already providing thrust to the wheels.

In other words, traditional vehicles wish they has it so good.

Jerry P · 12-15-2004, 10:56 PM

Thanks John! We can always count on you to have technical info and help to make us all a little better informed about the amazing cars we drive.

The oil forum is www.bobistheoilguy.com

There is a lot to learn there, and a lot of people wanting to learn.

john1701a · 12-15-2004, 11:30 PM

Technical?

I was striving to avoid using any numbers or complex comparisions.

Did I accomplish that?

Frank Hudon · 12-15-2004, 11:54 PM

John you just go way over board on the techincal jargon and words all the time even on simple questions

12-15-2004, 07:27 PM	#1
Jerry P Senior Member Join Date: Dec 2003 Location: Waterford, PA Posts: 293 My Car: 2004 Prius Model: Package: #7 Thanks: 0 Thanked 0 Times in 0 Posts Friends: 0	Question about oil system in ICE... A discussion is underway at another site I frequent, www.bobistheoilguy.com, about the wear on the ICE in a hybrid car due to stop/start cycles. Does anybody here know: is the oil pump for the ICE always pumping ( either electric or belt driven?) to keep the engine lubed prior to start up? The hot coolant storage/circulation system is great for preventing cold starts but if the oil is pumping through the engine even a few seconds before that start, it would be even better. Hopefully someone with a lot of technical knowledge (are you out there John1701A?) can give us an answer. __________________ Warrior in the Battle for American Energy Independence

12-15-2004, 09:50 PM	#2
Sufferin' Prius Envy Platinum Member Join Date: Jul 2004 Location: USA Posts: 4,012 My Car: Other Non-Hybrid Model: Package: N/A Thanks: 0 Thanked 3 Times in 2 Posts Friends: 0	Re: Question about oil system in ICE... your comma (,) in your link is causing it not to work when clicked. www.bobistheoilguy.com , Somehow I think the Toyota engineers figured out what is the best oil/engine rev/start timeing combination.

12-15-2004, 10:38 PM	#3
john1701a Senior Member Join Date: Jan 2004 Location: Minnesota Posts: 3,375 My Car: 2010 Prius Model: IV Package: Solar Roof Thanks: 9 Thanked 145 Times in 70 Posts Friends: 12	Re: Question about oil system in ICE... The system in Prius is brilliantly simple, a setup that makes the prevention of wear appear effortless. Rather than a traditional starter that is barely strong enough to spin the engine at a slow speed, then hoping the fuel actually ignites so the spinning can continue by the engine itself, a motor that is dramatically more powerful is used instead. It can continue providing spin power afterward too, and it does. To top that, starting isn't even attempted until oil pressure is established, since there is an even more powerful motor already providing thrust to the wheels. In other words, traditional vehicles wish they has it so good. __________________ JOHN http://john1701a.com 52.5 MPG average @ 10,362 miles

12-15-2004, 10:56 PM	#4
Jerry P Senior Member Join Date: Dec 2003 Location: Waterford, PA Posts: 293 My Car: 2004 Prius Model: Package: #7 Thanks: 0 Thanked 0 Times in 0 Posts Friends: 0	Re: Question about oil system in ICE... Thanks John! We can always count on you to have technical info and help to make us all a little better informed about the amazing cars we drive. The oil forum is www.bobistheoilguy.com There is a lot to learn there, and a lot of people wanting to learn.

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12-15-2004, 11:30 PM	#5
john1701a Senior Member Join Date: Jan 2004 Location: Minnesota Posts: 3,375 My Car: 2010 Prius Model: IV Package: Solar Roof Thanks: 9 Thanked 145 Times in 70 Posts Friends: 12	Technical? I was striving to avoid using any numbers or complex comparisions. Did I accomplish that?

12-15-2004, 11:54 PM	#6
Frank Hudon Senior Member Join Date: Jan 2004 Posts: 4,144 My Car: Model: Package: Thanks: 0 Thanked 0 Times in 0 Posts Friends: 0	John you just go way over board on the techincal jargon and words all the time even on simple questions