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Engine Oiling System for Hybrids

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Old Aug 11, 2011 | 07:59 AM
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Default Engine Oiling System for Hybrids

Does anyone know what the Lexus engineers have done to keep the engine oiled up for all the starting and stopping a hybrid engine will do?

I would think the oil pump would need to continue to pump while running on the electric motor so when the engine kicks in it's not dry of oil. Just interested if anyone accurately knows what was done to address this, Thanks.

Bob
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Old Aug 11, 2011 | 06:42 PM
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Originally Posted by currybob
Does anyone know what the Lexus engineers have done to keep the engine oiled up for all the starting and stopping a hybrid engine will do?

I would think the oil pump would need to continue to pump while running on the electric motor so when the engine kicks in it's not dry of oil. Just interested if anyone accurately knows what was done to address this, Thanks.

Bob
Bob
The engine is never dry. It's a new low friction engine and is lubed with Toyota's 0w20w oil that has very good properties. All the parts maintain a coating of oil until more is pumped through. It's not the same as the old days where thicker weight oil was used and we had to monitor low pressures.
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Old Aug 12, 2011 | 04:04 AM
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Interesting, I knew they would have to do something to improve lubrication for sometimes the motor is on and off several times in a short period of time and then other times I can get a lengthy all electric run with no engine. I guess that's another reason these come from the factory with synthetic oil.

There must be something to also allow the motor to start easier for it's so subtle you can barley tell when the motor starts again unlike when you first crank the motor. It's almost like it is spun up to RPMs by the electric motor before the engine actually cranks.
Thanks


Bob
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Old Aug 12, 2011 | 12:09 PM
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Lots of good info in the Hybrid Synergy Drive entry on Wikipedia.

http://en.wikipedia.org/wiki/Hybrid_Synergy_Drive
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Old Aug 19, 2011 | 10:32 AM
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Coffee
I meant to post a thank you for the link you posted but got side tracked reading it.
Thanks again

Bob
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Old Aug 19, 2011 | 05:06 PM
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Originally Posted by currybob
Coffee
I meant to post a thank you for the link you posted but got side tracked reading it.
Thanks again

Bob
Haha! I know what you mean. I spent a lot of time reading it...and all the links at the bottom. It killed a lot of time at work one day.
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Old Sep 4, 2011 | 04:44 AM
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I actually thought the oil was 0w 50w?
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Old Sep 4, 2011 | 07:21 AM
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Originally Posted by paiceman
I actually thought the oil was 0w 50w?
Never heard of any car using 0W50 oil other than in racing. And the 450h would not fit in that category for sure.

http://www.mobiloil.com/USA-English/...ing_0W-50.aspx
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Old Sep 6, 2011 | 04:01 AM
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I don't think I have ever seen 0w-50w oil. I tyied to find 0w-20 but had to settle for 5w-20w mobile one.
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Old Sep 6, 2011 | 05:11 AM
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Any Toyota or Lexus dealer will have it.

Also you should be able to find it at auto parts stores, walmart, etc.

Originally Posted by currybob
I don't think I have ever seen 0w-50w oil. I tyied to find 0w-20 but had to settle for 5w-20w mobile one.
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Old Sep 25, 2011 | 09:18 PM
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I checked wal-mart and a couple of the local auto parts places. Only one did carry the 0w-20w but only had a couple of quarts left. I wanted the Mobile one and was looking for the 5 qt jugs for I change my own oil. I figured the difference from 0w vs 5w was minute and wal-mart had a good price on them.

Bob
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