Oil Catch Can
08-04-18, 11:00 AM
#16
They probably knew it did but since that engine is intentionally nerfed they probably just figured that the user would never notice the drop in power, I mean it is already kind of in slug land anyways, compared to its peers. (The V6 camry I just retired last year smokes an IS250, lol).
Then again every time I think about the nerfed IS250 motor (4GR-FSE) the first thing that comes into my head is
"BUT Y THO?"
It just never made any sense. My only guess was that they did this so they could sell more cars to some demographic that was concerned more about how the car looked than how it drove. About the only logical explanation is that they were targeting this weird segment of drivers with that idea.
-Mike
Then again every time I think about the nerfed IS250 motor (4GR-FSE) the first thing that comes into my head is
"BUT Y THO?"
It just never made any sense. My only guess was that they did this so they could sell more cars to some demographic that was concerned more about how the car looked than how it drove. About the only logical explanation is that they were targeting this weird segment of drivers with that idea.
-Mike
Last edited by drgrant; 08-04-18 at 11:03 AM.
08-04-18, 11:07 AM
#17
Lexus Test Driver
They probably knew it did but since that engine is intentionally nerfed they probably just figured that the user would never notice the drop in power, I mean it is already kind of in slug land anyways, compared to
its peers.
Then again every time I think about the nerfed IS250 motor (4GR-FSE) the first thing that comes into my head is
"BUT Y THO?"
It just never made any sense. My only guess was that they did this so they could sell more cars to some demographic that was concerned more about how the car looked than how it drove. About the only
logical explanation is that they were targeting this weird segment of drivers with that idea.
-Mike
its peers.
Then again every time I think about the nerfed IS250 motor (4GR-FSE) the first thing that comes into my head is
"BUT Y THO?"
It just never made any sense. My only guess was that they did this so they could sell more cars to some demographic that was concerned more about how the car looked than how it drove. About the only
logical explanation is that they were targeting this weird segment of drivers with that idea.
-Mike
08-04-18, 02:50 PM
#18
Pole Position
Thread Starter
My point exactly. My '07 IS had absolutely terrible carbon build up that the 9 year extended engine warranty wouldn't cover. Coming to stop lights the car shook like crazy and just about every time I started the car it sounded like it was going to blow up. I know it was pretty specific to the 250 engine but was just curious.
08-04-18, 06:58 PM
#19
Lexus Test Driver
My point exactly. My '07 IS had absolutely terrible carbon build up that the 9 year extended engine warranty wouldn't cover. Coming to stop lights the car shook like crazy and just about every time I started the car it sounded like it was going to blow up. I know it was pretty specific to the 250 engine but was just curious.
08-05-18, 01:46 AM
#20
Pole Position
Thread Starter
Dealer just kept saying the issue didn't rise to level of needing repair because it didn't trigger the check engine light. I had a service adviser tell me I should go get a bad alternator out of a junk yard or something like that just to trip the check engine light and then they would be able to get it passed by Lexus. I wasn't planning on keeping the car much longer so I didn't want to go through that whole process.
05-13-22, 01:26 PM
#21
The IS250 engine is direct injection only and prone to carbon buildup. Oil catch can may not completely mitigate the problem, but should at least delay carbon buildup problems by reducing oil blow by. It's not necessary for the GS because we have dual injection which keeps the valves cleaner.
05-13-22, 01:33 PM
#22
Lexus Champion
The 2008 GS350 used the 2GR-FSE, which used the dual port/direct injected system.
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05-13-22, 01:49 PM
#23
05-13-22, 02:02 PM
#24
Lexus Champion
It's the one you have circled. The 2006 GS300 had the carbon build up, the 2008 GS350 did not, as it is the 2GR-FSE with dual fuel injection.
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User 122922 (05-13-22)
05-13-22, 02:13 PM
#25
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05-13-22, 03:15 PM
#27
05-13-22, 04:13 PM
#28
Lexus Test Driver
Personally I wouldn't do an oil catch can on a street car. The whole point of a Lexus is white-glove driving. No messing with the engine.
As far as dual injection (port/direct) not having carbon issues, I think that just mitigates, but doesn't eliminate the risk. Delays the inevitable. I know there were posts of early Lexus turbo 4s having some carbon issues. check nx forum
As far as dual injection (port/direct) not having carbon issues, I think that just mitigates, but doesn't eliminate the risk. Delays the inevitable. I know there were posts of early Lexus turbo 4s having some carbon issues. check nx forum
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User 122922 (05-13-22)
05-13-22, 04:38 PM
#29
Personally I wouldn't do an oil catch can on a street car. The whole point of a Lexus is white-glove driving. No messing with the engine.
As far as dual injection (port/direct) not having carbon issues, I think that just mitigates, but doesn't eliminate the risk. Delays the inevitable. I know there were posts of early Lexus turbo 4s having some carbon issues. check nx forum
As far as dual injection (port/direct) not having carbon issues, I think that just mitigates, but doesn't eliminate the risk. Delays the inevitable. I know there were posts of early Lexus turbo 4s having some carbon issues. check nx forum
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