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LSPI Concern for GDI Non - Turbo Engine ? #5337378 01/31/20 01:35 PM
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ChrisD46 Offline OP
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As the title states - is there a LSPI concern for GDI non - turbo engines ? ... My guess is "No" but will still use a D1 / Gen 2 SN+ synthetic oil for other attributes in a GDI engine . Your thoughts ?


'17 Hyundai Sonata 2.4L GDI 5W20 QSUD / Fram Ultra #9688
'10 Hyundai Elantra 2.0L 5W30 (50%) / 5W20 (50%) QSUD / Fram Ultra #9688
'07 Kia Sedona 3.8L 5W30 Castrol EP / Fram Ultra #9999
Re: LSPI Concern for GDI Non - Turbo Engine ? [Re: ChrisD46] #5337385 01/31/20 01:43 PM
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BMWTurboDzl Offline
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No.


“It took untold generations to get you where you are. A little gratitude might be in order. If you’re going to insist on bending the world to your way, you better have your reasons.”

435i
Re: LSPI Concern for GDI Non - Turbo Engine ? [Re: ChrisD46] #5337399 01/31/20 02:15 PM
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Nope


2018 Trd Pro 4Runner
2018 Tacoma off-road

Dealer 0w20 to M1 0w40 FS -it depends
Re: LSPI Concern for GDI Non - Turbo Engine ? [Re: ChrisD46] #5337455 01/31/20 03:26 PM
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wemay Online Happy
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No


19 VW Passat Wolfsburg TSI (VW Genuine 0W-20+OEM)
13 Hyundai Santa Fe Sport 2.0T (Shell RGT 5W-30+OEM)
Re: LSPI Concern for GDI Non - Turbo Engine ? [Re: ChrisD46] #5337549 01/31/20 05:16 PM
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While I suppose it's conceivable for a lspi event occuring in a DI engine due to a leaky injector (?), I've personally never read about one happening in a GDI. (que the rare report of it happening to someone in BFE back in 2000' 😂)

It's a phenomena almost exclusive to turbo GDI's.

Last edited by Mad_Hatter; 01/31/20 05:30 PM.
Re: LSPI Concern for GDI Non - Turbo Engine ? [Re: ChrisD46] #5337585 01/31/20 05:57 PM
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only the carbon issue they ALL have sooner or later, naturally aspirated are better there as well + drive it like you stole it now + then

Re: LSPI Concern for GDI Non - Turbo Engine ? [Re: ChrisD46] #5337617 01/31/20 06:29 PM
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Triple_Se7en Offline
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Originally Posted by ChrisD46
As the title states - is there a LSPI concern for GDI non - turbo engines ? ... My guess is "No" but will still use a D1 / Gen 2 SN+ synthetic oil for other attributes in a GDI engine . Your thoughts ?

The Sonata should be fine, using the same or similar to, what's in your Signature....ie... SN Plus and Dexos 1 / Gen2
Should also be fine running regular unleaded 87 octane in your 2017. Top-tier fuels are recommended. I stay away from pumps that read 10% ethanol. I use Shell gas


Trolled Here? Use the Ignore User Option
Keepa' Ya' Pistons, Valves & Injectors Clean
19' Hyundai SantaFe 2.4 GDI / 20' Kia Soul XLine 2.0 MPI - both Pennzoil Ultra Platinum 5W30 / Mobil1 Filters



Re: LSPI Concern for GDI Non - Turbo Engine ? [Re: Mad_Hatter] #5337728 01/31/20 08:51 PM
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Originally Posted by Mad_Hatter
While I suppose it's conceivable for a lspi event occuring in a DI engine due to a leaky injector (?),


Why? Liquid fuel does not burn, it would have to be atomized or partially evaporated. I'd be more worried about diluting the oil or hydro-locking the cylinder than LSPI.


De omnibus dubitandum.
Re: LSPI Concern for GDI Non - Turbo Engine ? [Re: Triple_Se7en] #5337786 01/31/20 10:35 PM
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madeej11 Offline
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Originally Posted by Triple_Se7en
Originally Posted by ChrisD46
As the title states - is there a LSPI concern for GDI non - turbo engines ? ... My guess is "No" but will still use a D1 / Gen 2 SN+ synthetic oil for other attributes in a GDI engine . Your thoughts ?

The Sonata should be fine, using the same or similar to, what's in your Signature....ie... SN Plus and Dexos 1 / Gen2
Should also be fine running regular unleaded 87 octane in your 2017. Top-tier fuels are recommended. I stay away from pumps that read 10% ethanol. I use Shell gas

Why, are all grades of Shell brand gasoline in the U.S ethanol free? I thought ethanol in gas was unavoidable unless you buy 91 or 93 octane. I know it's that way up here in Canada.

Last edited by madeej11; 01/31/20 10:42 PM.
Re: LSPI Concern for GDI Non - Turbo Engine ? [Re: ChrisD46] #5337790 01/31/20 10:43 PM
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They're not- up to 10% ethanol in 87 and 89 at the pump here....only 91 is ethanol free.

Re: LSPI Concern for GDI Non - Turbo Engine ? [Re: ChrisD46] #5337821 01/31/20 11:59 PM
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Mad_Hatter Offline
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Originally Posted by SubieRubyRoo
Originally Posted by Mad_Hatter
While I suppose it's conceivable for a lspi event occuring in a DI engine due to a leaky injector (?),


Why? Liquid fuel does not burn, it would have to be atomized or partially evaporated. I'd be more worried about diluting the oil or hydro-locking the cylinder than LSPI.

Leaking injectors during and post operation (shut down) in a DI engine contribute to piston top carbon deposits. Excessive carbon deposits on the piston crown increases the potential for "hot spot" pre-ignition, even of leaked fuel droplets. This is why I said I suppose it's possible (openly musing about a rare event) for a pre-ignition event in a normally aspirated DI engine. It's possible for it to happen in a PI engine as well, albeit less likely because the injectors are positioned outside the cylinder. But possible doesn't mean probable, that's because several things have to be in place for a pre-ignition event to occur. Pre-ignition is a more common phenomena with carbureted engines simply because leaking injectors are rare on modern cars.. but can and do happen.

Last edited by Mad_Hatter; 02/01/20 12:21 AM.
Re: LSPI Concern for GDI Non - Turbo Engine ? [Re: ChrisD46] #5337862 02/01/20 01:57 AM
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I suppose it’s possible. Just wanted to hear your reasoning thumbsup


De omnibus dubitandum.
Re: LSPI Concern for GDI Non - Turbo Engine ? [Re: tundraotto] #5337865 02/01/20 02:05 AM
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Originally Posted by tundraotto
They're not- up to 10% ethanol in 87 and 89 at the pump here....only 91 is ethanol free.

Thanks, that's what I thought but trip7 got me all balled up, look what he wrote.

Re: LSPI Concern for GDI Non - Turbo Engine ? [Re: SubieRubyRoo] #5337877 02/01/20 03:13 AM
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Mad_Hatter Offline
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Originally Posted by SubieRubyRoo
I suppose it’s possible. Just wanted to hear your reasoning thumbsup

Yeah, I've personally never seen it (after effects on a piston) happening but I've heard of it. Guess it's just one more reason to minimize combustion chamber deposits. I would think it's an even rarer event in a port injected design... that the carbon on the valves would soak up excess fuel.

Here's some "cool" pics of various piston failures (analysis), like from lack of lubrication and bad injectors. Gotta be a rodeo to experience it...no thanks!


https://highwayandheavyparts.com/n-12634-piston-crowns-failure-analysis.html

Last edited by Mad_Hatter; 02/01/20 03:14 AM.
Re: LSPI Concern for GDI Non - Turbo Engine ? [Re: Triple_Se7en] #5337979 02/01/20 08:35 AM
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I mainly use Quick Trip Top Tier 87 octane rated gas - but most gas stations in my area (including Quick Trip) state "up to 10% ethanol" ... I actually read where ethanol is a good fuel injector cleaner (but of course ethanol has other side effects) ... I have a Shell station near me , so I'll have to check if they state 10% ethanol on the pumps?
Originally Posted by Triple_Se7en
Originally Posted by ChrisD46
As the title states - is there a LSPI concern for GDI non - turbo engines ? ... My guess is "No" but will still use a D1 / Gen 2 SN+ synthetic oil for other attributes in a GDI engine . Your thoughts ?

The Sonata should be fine, using the same or similar to, what's in your Signature....ie... SN Plus and Dexos 1 / Gen2
Should also be fine running regular unleaded 87 octane in your 2017. Top-tier fuels are recommended. I stay away from pumps that read 10% ethanol. I use Shell gas


'17 Hyundai Sonata 2.4L GDI 5W20 QSUD / Fram Ultra #9688
'10 Hyundai Elantra 2.0L 5W30 (50%) / 5W20 (50%) QSUD / Fram Ultra #9688
'07 Kia Sedona 3.8L 5W30 Castrol EP / Fram Ultra #9999
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