I thought I've read previously that low rpm/lugging an engine can cause/make it worse also? I notice with my GTI (2.0 DI turbo) that if left in auto mode, the DSG trans shifts up gear very quickly. Resulting in basically lugging the engine. Most automatic transmissions do that these days.
LSPI engine damage
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Originally Posted By: HemiHawk
I thought I've read previously that low rpm/lugging an engine can cause/make it worse also? I notice with my GTI (2.0 DI turbo) that if left in auto mode, the DSG trans shifts up gear very quickly. Resulting in basically lugging the engine. Most automatic transmissions do that these days.
That would be the "low speed" in LSPI.
I thought I've read previously that low rpm/lugging an engine can cause/make it worse also? I notice with my GTI (2.0 DI turbo) that if left in auto mode, the DSG trans shifts up gear very quickly. Resulting in basically lugging the engine. Most automatic transmissions do that these days.
That would be the "low speed" in LSPI.
Originally Posted By: mightymousetech
Originally Posted By: HemiHawk
I thought I've read previously that low rpm/lugging an engine can cause/make it worse also? I notice with my GTI (2.0 DI turbo) that if left in auto mode, the DSG trans shifts up gear very quickly. Resulting in basically lugging the engine. Most automatic transmissions do that these days.
That would be the "low speed" in LSPI.
Wow, yea uh... so anyway... haha. Thanks for pointing that out without shaming me out of existence. I even read out the dang words when I see the abbreviation.
As others have mentioned, The Hyundai Veloster turbo was plagued with this in its first year. I think an ECU tune, and different spark plugs started sparing engines.
Originally Posted By: HemiHawk
I thought I've read previously that low rpm/lugging an engine can cause/make it worse also? I notice with my GTI (2.0 DI turbo) that if left in auto mode, the DSG trans shifts up gear very quickly. Resulting in basically lugging the engine. Most automatic transmissions do that these days.
That would be the "low speed" in LSPI.
Wow, yea uh... so anyway... haha. Thanks for pointing that out without shaming me out of existence. I even read out the dang words when I see the abbreviation.
As others have mentioned, The Hyundai Veloster turbo was plagued with this in its first year. I think an ECU tune, and different spark plugs started sparing engines.
Originally Posted By: HemiHawk
Wow, yea uh... so anyway... haha. Thanks for pointing that out without shaming me out of existence. I even read out the dang words when I see the abbreviation.
As others have mentioned, The Hyundai Veloster turbo was plagued with this in its first year. I think an ECU tune, and different spark plugs started sparing engines.
Wow, yea uh... so anyway... haha. Thanks for pointing that out without shaming me out of existence. I even read out the dang words when I see the abbreviation.
As others have mentioned, The Hyundai Veloster turbo was plagued with this in its first year. I think an ECU tune, and different spark plugs started sparing engines.
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I would also note that GDI also has the reputation of carboning up the intake valves at a faster rate than PFI since fuel spray never reaches it to clean it (nor does the fuel tank cleaners). I also notice (with my T-GDI engine) that my oil gets "dirtier" much faster and my exhaust tips get very sooty very quickly. I DO get the improved performance and fuel mileage benefits of it. No issues thus far and I sure enjoy the Turbo! Mine does not have a defined "sport mode" so I just use the paddle shifters and auto-stick to keep my revs up along my DD at times. Highway speeds are the best!
Funny you say that PimTac. I learned to drive in a stick shift. I was very good at it once I got the hang of it. In fact when I left home ( long story there) when I was 18 and in high school I drove to the mountains of Western Virginia. First time I had driven in that part of the state. I was never in the wrong gear one time for that entire trip. I drive up to Lover's Leap at 10 o clock at night. Base elevation is 1500 and you gain 1800 ft to an elevation of 3300 at the top. I continued westward and drove up over near Mt Rogers on Rte 600. Rather challenging drive there at 1130 at night. Up and over two mountains. And I drove it perfectly in my stick shift Ford Probe. The next two days I drive all over the mountains out there and felt just fine. Thankfully I paid a lot of attention when I saw my mom drive out there while using a stick shift car.
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Ahh yeah me too
True story.. A friend of mine and a buddy of his went driving up in the mountains to skyline drive. My friend knew how to shift his motorcycle appropriately to get up the tough climb up. Second guy ... Not so much.. In wrong gear.. black smoke... Slow as all get out. I got a good laugh out of hearing that story when they got back from that day trip.
True story.. A friend of mine and a buddy of his went driving up in the mountains to skyline drive. My friend knew how to shift his motorcycle appropriately to get up the tough climb up. Second guy ... Not so much.. In wrong gear.. black smoke... Slow as all get out. I got a good laugh out of hearing that story when they got back from that day trip.
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I didn't read thru 5 pages but http://www.cadillacforums.com/forums/cad...roll-call.html. I'm pretty sure this qualifies. This GM 2.0T is in many cars including our Buick. Its a good feeling.
It's my understanding that LSPI effects mostly 4 cylinder DI forced induction engines. I've seen the result from a LSPI event, the piston was completely blown apart. Not a pretty sight. This was in a GM engine.
Originally Posted By: Fasttimez
It's my understanding that LSPI effects mostly 4 cylinder DI forced induction engines. I've seen the result from a LSPI event, the piston was completely blown apart. Not a pretty sight. This was in a GM engine.
Would you, by chance, have any pictures you could post?
It's my understanding that LSPI effects mostly 4 cylinder DI forced induction engines. I've seen the result from a LSPI event, the piston was completely blown apart. Not a pretty sight. This was in a GM engine.
Would you, by chance, have any pictures you could post?
Originally Posted By: PimTac
Bbhero, If I am riding with someone in a stick shift car and they start lugging the engine, you would see me cringe.
Wife gave us a ride to the mall earlier, in third after 20 metres. Usually she is better , but I make her nervous..
Bbhero, If I am riding with someone in a stick shift car and they start lugging the engine, you would see me cringe.
Wife gave us a ride to the mall earlier, in third after 20 metres. Usually she is better , but I make her nervous..
My wife and I were married in 1984. Until 2014, so thirty years, we never owned a vehicle with an automatic. Now lest you think we were putting around in the country
here's an example:
My wife drove about 44 miles one way, in Southern California, from Chino Hills to Newport Beach and back, through the Orange Crush, 5 days a week, from 2005-2012 in her 2002 Mazda 626 2.5 V-6 5-speed. 88 miles a day, clutching all the way.
My wife drove about 44 miles one way, in Southern California, from Chino Hills to Newport Beach and back, through the Orange Crush, 5 days a week, from 2005-2012 in her 2002 Mazda 626 2.5 V-6 5-speed. 88 miles a day, clutching all the way.
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Originally Posted By: bigj_16
Originally Posted By: Virtus_Probi
Originally Posted By: bigj_16
What is the standard recommended oil for the Subies? 5W-30?. Any special specs?
For the 2.0l turbo, just a synthetic 5W30 API SM/SN or GF4/5 is recommended in the manual.
"Subaru" oil is supposedly made by Idemitsu and good luck finding any hard info about it...I doubt that many US dealers use it for their changes.
That's pretty broad on specs. Interesting.
From what I have seen so far in studies, and this is very preliminary, maybe pre-preliminary
The ideal oil for LSPI prevention would be:
* as high a viscosity as you can get away with,very end of the range for the grade
* as high in zinc as you can get away with, so probably in the 1200 range, so you won't kill emissions stuff
* low in calcium, probably to be subbed with magnesium
* Group V based, with a little Group III thrown in for mixture sake(no IV's)
* A good shot of Moly, maybe 150-ish
Anyone know where I can get some?
Sounds like you want us to recommend Redline!
Originally Posted By: Virtus_Probi
Originally Posted By: bigj_16
What is the standard recommended oil for the Subies? 5W-30?. Any special specs?
For the 2.0l turbo, just a synthetic 5W30 API SM/SN or GF4/5 is recommended in the manual.
"Subaru" oil is supposedly made by Idemitsu and good luck finding any hard info about it...I doubt that many US dealers use it for their changes.
That's pretty broad on specs. Interesting.
From what I have seen so far in studies, and this is very preliminary, maybe pre-preliminary
The ideal oil for LSPI prevention would be:
* as high a viscosity as you can get away with,very end of the range for the grade
* as high in zinc as you can get away with, so probably in the 1200 range, so you won't kill emissions stuff
* low in calcium, probably to be subbed with magnesium
* Group V based, with a little Group III thrown in for mixture sake(no IV's)
* A good shot of Moly, maybe 150-ish
Anyone know where I can get some?
Sounds like you want us to recommend Redline!
Originally Posted By: A_Harman
Originally Posted By: bigj_16
Originally Posted By: Virtus_Probi
Originally Posted By: bigj_16
What is the standard recommended oil for the Subies? 5W-30?. Any special specs?
For the 2.0l turbo, just a synthetic 5W30 API SM/SN or GF4/5 is recommended in the manual.
"Subaru" oil is supposedly made by Idemitsu and good luck finding any hard info about it...I doubt that many US dealers use it for their changes.
That's pretty broad on specs. Interesting.
From what I have seen so far in studies, and this is very preliminary, maybe pre-preliminary
The ideal oil for LSPI prevention would be:
* as high a viscosity as you can get away with,very end of the range for the grade
* as high in zinc as you can get away with, so probably in the 1200 range, so you won't kill emissions stuff
* low in calcium, probably to be subbed with magnesium
* Group V based, with a little Group III thrown in for mixture sake(no IV's)
* A good shot of Moly, maybe 150-ish
Anyone know where I can get some?
Sounds like you want us to recommend Redline!
I am a big Redline fan, but I think most, if not all, have massive calcium packs.
Originally Posted By: bigj_16
Originally Posted By: Virtus_Probi
Originally Posted By: bigj_16
What is the standard recommended oil for the Subies? 5W-30?. Any special specs?
For the 2.0l turbo, just a synthetic 5W30 API SM/SN or GF4/5 is recommended in the manual.
"Subaru" oil is supposedly made by Idemitsu and good luck finding any hard info about it...I doubt that many US dealers use it for their changes.
That's pretty broad on specs. Interesting.
From what I have seen so far in studies, and this is very preliminary, maybe pre-preliminary
The ideal oil for LSPI prevention would be:
* as high a viscosity as you can get away with,very end of the range for the grade
* as high in zinc as you can get away with, so probably in the 1200 range, so you won't kill emissions stuff
* low in calcium, probably to be subbed with magnesium
* Group V based, with a little Group III thrown in for mixture sake(no IV's)
* A good shot of Moly, maybe 150-ish
Anyone know where I can get some?
Sounds like you want us to recommend Redline!
I am a big Redline fan, but I think most, if not all, have massive calcium packs.
Originally Posted By: bigj_16
Originally Posted By: Fasttimez
It's my understanding that LSPI effects mostly 4 cylinder DI forced induction engines. I've seen the result from a LSPI event, the piston was completely blown apart. Not a pretty sight. This was in a GM engine.
Would you, by chance, have any pictures you could post?
This was almost 6 months ago, but I'll see if he still has pics on his phone. It completely separated the skirt from the rest of the piston. The driving conditions were as follows.....slowing down coming up to a red light, speed slowed to approximately 10mph, the light changed to green & traffic started moving, he stepped on the gas & BOOM......according to the GM regional engineer, this was a classic LSPI event. Meaning almost every catastrophic failure they see happens in this way. Slowing almost to a stop, then accelerating suddenly.
Originally Posted By: Fasttimez
It's my understanding that LSPI effects mostly 4 cylinder DI forced induction engines. I've seen the result from a LSPI event, the piston was completely blown apart. Not a pretty sight. This was in a GM engine.
Would you, by chance, have any pictures you could post?
This was almost 6 months ago, but I'll see if he still has pics on his phone. It completely separated the skirt from the rest of the piston. The driving conditions were as follows.....slowing down coming up to a red light, speed slowed to approximately 10mph, the light changed to green & traffic started moving, he stepped on the gas & BOOM......according to the GM regional engineer, this was a classic LSPI event. Meaning almost every catastrophic failure they see happens in this way. Slowing almost to a stop, then accelerating suddenly.
Originally Posted By: Fasttimez
Originally Posted By: bigj_16
Originally Posted By: Fasttimez
It's my understanding that LSPI effects mostly 4 cylinder DI forced induction engines. I've seen the result from a LSPI event, the piston was completely blown apart. Not a pretty sight. This was in a GM engine.
Would you, by chance, have any pictures you could post?
This was almost 6 months ago, but I'll see if he still has pics on his phone. It completely separated the skirt from the rest of the piston. The driving conditions were as follows.....slowing down coming up to a red light, speed slowed to approximately 10mph, the light changed to green & traffic started moving, he stepped on the gas & BOOM......according to the GM regional engineer, this was a classic LSPI event. Meaning almost every catastrophic failure they see happens in this way. Slowing almost to a stop, then accelerating suddenly.
That is fascinating!I wonder why not from a stop?
Originally Posted By: bigj_16
Originally Posted By: Fasttimez
It's my understanding that LSPI effects mostly 4 cylinder DI forced induction engines. I've seen the result from a LSPI event, the piston was completely blown apart. Not a pretty sight. This was in a GM engine.
Would you, by chance, have any pictures you could post?
This was almost 6 months ago, but I'll see if he still has pics on his phone. It completely separated the skirt from the rest of the piston. The driving conditions were as follows.....slowing down coming up to a red light, speed slowed to approximately 10mph, the light changed to green & traffic started moving, he stepped on the gas & BOOM......according to the GM regional engineer, this was a classic LSPI event. Meaning almost every catastrophic failure they see happens in this way. Slowing almost to a stop, then accelerating suddenly.
That is fascinating!I wonder why not from a stop?
Originally Posted By: bigj_16
I am a big Redline fan, but I think most, if not all, have massive calcium packs.
Is their moly content helpful in this regard, though?
I am a big Redline fan, but I think most, if not all, have massive calcium packs.
Is their moly content helpful in this regard, though?
Originally Posted By: bigj_16
That is fascinating!I wonder why not from a stop?
I would assume when you come to a complete stop the auto finally changes down into first gear, before that it's still holding a higher gear for fuel economy even when going very slow, put your foot down at low speed in a high gear and you are lugging the engine.
That is fascinating!I wonder why not from a stop?
I would assume when you come to a complete stop the auto finally changes down into first gear, before that it's still holding a higher gear for fuel economy even when going very slow, put your foot down at low speed in a high gear and you are lugging the engine.
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