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Direct Injection Maintenance #4448481
07/03/17 03:09 PM
07/03/17 03:09 PM
Joined: Sep 2002
Posts: 2,382
VA
Gebo Offline OP
Gebo  Offline OP
Joined: Sep 2002
Posts: 2,382
VA
My son has an IS 350 with direct Injection. I've been reading a little and it seems like there are some things that you should do to help maintain them that are over and above a "normal" engine.. I'm I correct or are there additional maintenance issues we should be following?


'98 LEX LS400 280K
'00 LEX GS300 195K
'02 4Runner 225K
'05 Lex LS430 85K
'06 Toyota Highlander 145K
'09 Lex IS350 85K
'07 Lex GX470 60K
Amsoil in all engines, transmissions and differentials

Re: Direct Injection Maintenance [Re: Gebo] #4448495
07/03/17 03:21 PM
07/03/17 03:21 PM
Joined: Mar 2013
Posts: 5,031
The Midwest
skyactiv Offline
skyactiv  Offline
Joined: Mar 2013
Posts: 5,031
The Midwest
Occasionally driving it fast at higher RPM's for an extended period of time might help.


Wife: 15' Audi A4 quattro 6 speed manual
Me: 13' VW GTI 3 door 6 speed manual
Wanted: 2019 Ford Ranger
Re: Direct Injection Maintenance [Re: skyactiv] #4448496
07/03/17 03:23 PM
07/03/17 03:23 PM
Joined: Dec 2016
Posts: 45
Lemont IL
Fattylocks Offline
Fattylocks  Offline
Joined: Dec 2016
Posts: 45
Lemont IL
Originally Posted By: skyactiv
Occasionally driving it fast at higher RPM's for an extended period of time might help.


The ever popular Italian Tune up?


94 Caprice Wagon Daily driver
05 Focus Wagon 2.0 Duratech Thrifty city car
05 P71 ex Homeland Security emergency Beagle cruiser
Re: Direct Injection Maintenance [Re: Gebo] #4448499
07/03/17 03:30 PM
07/03/17 03:30 PM
Joined: Sep 2014
Posts: 1,489
Toronto Canada
WobblyElvis Offline
WobblyElvis  Offline
Joined: Sep 2014
Posts: 1,489
Toronto Canada
My son has a 2008 Cadillac CTS with a 3.6 direct injection engine. 130,000 miles and no maintenance of any kind performed on the fuel system. Runs fine. If your owner's manual suggests some special service then follow that advice but if no maintenance is called for, I would do anything.

Re: Direct Injection Maintenance [Re: Gebo] #4448519
07/03/17 04:00 PM
07/03/17 04:00 PM
Joined: Mar 2017
Posts: 88
OK, USA
bradtech Offline
bradtech  Offline
Joined: Mar 2017
Posts: 88
OK, USA
I'm currently sitting at 23,200 miles on my 16 Hyundai Accent GDI. I bought it at 11,000 miles. My MPG has gradually got better & better. I've been running black bottle Castrol Edge 5w20, and only burn non-ethanol gasoline at Top-Tier gas stations. Every oil change I've been adding Techron Chevron complete fuel system cleaner. It is probably in my head but it seems around 3500-5000 miles the engine starts to lose some power until next oil change. But it is probably my own paranoia. About to do my first UOA on it and will post.


17 Chevrolet Malibu 3k 5w30 AC Delco Full Syn
08 Hyundai Santa Fe 78k 5w20 GTX HM OEM Filter
93 Chevy S10 203k 10w30 GTX HM ACDELCO PF52E Filter
Re: Direct Injection Maintenance [Re: Gebo] #4448550
07/03/17 04:25 PM
07/03/17 04:25 PM
Joined: Dec 2014
Posts: 1,296
California
Vuflanovsky Offline
Vuflanovsky  Offline
Joined: Dec 2014
Posts: 1,296
California
What Brad said...I tend to change the oil a little earlier than I probably would with a non-GDI vehicle but it's rarely over 6K miles. If you're paranoid or if you'd like peace of mind from shorter drain intervals that might be thought of as preventative maintenance, I'd never do 10K mile OCIs. However, I think that really depends on the application as I'm sure many larger vehicles would soldier it better than mine. GDI isn't one thing with one result so it would probably benefit your son to read or join a Lexus enthusiast board for information.

Re: Direct Injection Maintenance [Re: Gebo] #4448558
07/03/17 04:31 PM
07/03/17 04:31 PM
Joined: Sep 2010
Posts: 7,485
S California
OneEyeJack Offline
OneEyeJack  Offline
Joined: Sep 2010
Posts: 7,485
S California
I'd consider changing the fuel filter(s) either right on schedule or a bit sooner along with using a PEA containing gas additive.

Re: Direct Injection Maintenance [Re: Gebo] #4448600
07/03/17 05:18 PM
07/03/17 05:18 PM
Joined: Jul 2016
Posts: 1,683
Jacksonville, FL
FlyNavyP3 Offline
FlyNavyP3  Offline
Joined: Jul 2016
Posts: 1,683
Jacksonville, FL
Your son's car has both Direct AND Port injection. In my mother's GS 350 she runs a bottle of Gumout all in one every two months as a maintenance dose in lieu of paying a price premium for Top Tier gas. Nothing outside of top tier gas or an occasional dose of good fuel system cleaner should be necessary.


Luke
P-3C and P-8A Maritime Weapons and Tactics Instructor, Instructor Tactical Coordinator and Mission Commander
Re: Direct Injection Maintenance [Re: OneEyeJack] #4448623
07/03/17 05:41 PM
07/03/17 05:41 PM
Joined: Jun 2005
Posts: 11,612
Santa Barbara, CA
bdcardinal Offline
bdcardinal  Offline
Joined: Jun 2005
Posts: 11,612
Santa Barbara, CA
Originally Posted By: OneEyeJack
I'd consider changing the fuel filter(s) either right on schedule or a bit sooner along with using a PEA containing gas additive.


A lot of cars don't have fuel filters to change out, especially newer ones with GDI. I have my mom coached to use Shell V-Power, gave her a Shell card that I pay so she has no excuse. She also on her own will go WOT on on-ramps to help blow anything out of the chambers. She has a 14 Fusion with the 2.0L EcoBoost.


2014 Ford Mustang GT Track Pack
1995 Ford Mustang GT

Ford/Mazda Parts Counter
NRA Benefactor Member
Opinions expressed are my own.
Re: Direct Injection Maintenance [Re: Gebo] #4448866
07/03/17 08:54 PM
07/03/17 08:54 PM
Joined: Sep 2014
Posts: 2,177
US-WA
Dyusik Offline
Dyusik  Offline
Joined: Sep 2014
Posts: 2,177
US-WA
I'm confused, most volatile components burn early in the OC, so why change early? I've been on the opposite mind set, anyone care to explain how a less violitie used oil is better than a fresh fill? Do I have the wrong idea?


95 Cherokee 190K DELO 10W30, XG8
07 IS250 103K Napa 10w30, FULL
04 YZF-R1 19K DELO 15w40, XG7317
99 HD XL1200S 21K VR1 20w50, NG1515
14 RX450h 35k PP MIX, NG7047
Re: Direct Injection Maintenance [Re: WobblyElvis] #4449418
07/04/17 12:42 PM
07/04/17 12:42 PM
Joined: Nov 2004
Posts: 7,803
Texas
GMBoy Offline
GMBoy  Offline
Joined: Nov 2004
Posts: 7,803
Texas
Originally Posted By: WobblyElvis
My son has a 2008 Cadillac CTS with a 3.6 direct injection engine. 130,000 miles and no maintenance of any kind performed on the fuel system. Runs fine. If your owner's manual suggests some special service then follow that advice but if no maintenance is called for, I would do anything.



I've also got an '08 DI CTS with 140k and no issues. I do, at every oil change, spray a can of carb/intake cleaner thru the intake with motor running to soak the valves and do "some possible" cleaning. I figure it can't hurt and only costs $5 for can of cleaner.

Re: Direct Injection Maintenance [Re: Gebo] #4449916
07/04/17 08:59 PM
07/04/17 08:59 PM
Joined: Mar 2010
Posts: 847
Minneapolis
antonmnster Offline
antonmnster  Offline
Joined: Mar 2010
Posts: 847
Minneapolis
My '07 BMW 335 is up to 183,000. But it's on (at least) its second set of injectors, but that's more of a first-year manufacturing issue than anything else. I run either 87 or 91 (Minnesota) octane. Haven't done much special otherwise, beyond the normal BMW stuff.

Re: Direct Injection Maintenance [Re: Gebo] #4450195
07/05/17 08:03 AM
07/05/17 08:03 AM
Joined: May 2015
Posts: 2,011
America
Alfred_B Offline
Alfred_B  Offline
Joined: May 2015
Posts: 2,011
America
Top tier gas + quality synthetic motor oil + occasional fast drive at high RPM-s.

I think DI engine problems are exaggerated.

Re: Direct Injection Maintenance [Re: Alfred_B] #4450270
07/05/17 09:24 AM
07/05/17 09:24 AM
Joined: Apr 2017
Posts: 1,481
Ontario, Canada
mightymousetech Offline
mightymousetech  Offline
Joined: Apr 2017
Posts: 1,481
Ontario, Canada
Originally Posted By: Alfred_B
Top tier gas + quality synthetic motor oil + occasional fast drive at high RPM-s.

I think DI engine problems are exaggerated.


Agreed.


Mighty Mouse Tech
BMW Tech, Former Acura Tech
2010 Civic Si Castrol 0W40, Redline MTL
2013 BMW 135i M Sport Edition Castrol 0W40, Redline MTL
Re: Direct Injection Maintenance [Re: Dyusik] #4450401
07/05/17 11:37 AM
07/05/17 11:37 AM
Joined: Aug 2004
Posts: 4,815
Katy, Republic of Texas
blupupher Offline
blupupher  Offline
Joined: Aug 2004
Posts: 4,815
Katy, Republic of Texas
Originally Posted By: Dyusik
I'm confused, most volatile components burn early in the OC, so why change early? I've been on the opposite mind set, anyone care to explain how a less violitie used oil is better than a fresh fill? Do I have the wrong idea?

I think a part of the problem is with the smaller turbo DI engines getting a lot of fuel dilution in the oil.
I don't have one so I have not really looked into it, but seems I have read that is an issue (or maybe I have the wrong idea???).


2012 xB: QSUD 0w-20/CQ Blue/5k
2010 Santa Fe: PP 0w-20/P1/8k
2007 Vue: VSP 5w-30/EcoGard/OLM
2004 F150: GTX HM 5w-20/TG2/4k
2002 F150: GTX HM 5w-20/EcoGard/1yr
1994 VT1100c: Peak 15w-40/PSL/5k



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