Top 5 sludger engines--Need your input

[artificialist]

Originally Posted By: yakky
Not sure which ones, but some of the earlier Saturn engines had sludge issues bad enought to warrant TSBs.

Seems like every 1.9 DOHC from 1991 to 2002 was extremely unclean.

 

[Saturn_Fan]

Originally Posted By: artificialist
Originally Posted By: yakky
Not sure which ones, but some of the earlier Saturn engines had sludge issues bad enought to warrant TSBs.

Seems like every 1.9 DOHC from 1991 to 2002 was extremely unclean.


Sludge problems? They burn some oil because of the ring design, but I haven't heard of sludging in the 1.9L Saturns. Hmm, but I've been wrong before. I own a 00 Saturn SL and am pretty studied up on these cars.

Perhaps eljefino the Saturn guru could shed some light here.

 

[rg200amp]

Alot of BMWs have fallen victim to sludge.
Not due to the engine, but due to BMWs whacky 10,000-15,000 mile OCI. While they follow that OCI, they take there cars to the local shop who puts in 10w30 Dino!!!!

Owner and makers fault not the engine.

 

[kingrob]

Originally Posted By: artificialist
Originally Posted By: yakky
Not sure which ones, but some of the earlier Saturn engines had sludge issues bad enought to warrant TSBs.

Seems like every 1.9 DOHC from 1991 to 2002 was extremely unclean.


Hmm, news to me. I think perhaps maybe you're thinking of another vehicle altogether?

I've searched the archives and archives of TSB's posted over at Saturnfans and the only TSB directly related to engine oil was the one addressing the consumption issues. The "fix" was to pour GM top cleaner in the combustion chambers and do a soak to clean out the top end of the motor. This was to loosen up and re-seat the valves.

Oil consumption is a very well known issue on the S series 1.9 but it's virtually unknown to find a sludged motor on a Saturn. You're talking about someone that's known and spoken to dozens of people that have owned a Saturn at one point and have personally owned two, a SOHC as well as a DOHC.

Besides, when you're burning a quart every 700 or 800 miles it's kind of hard to build up sludge, no?

 

[double vanos]

I wonder if the above engines would have fared differently if they were treated to an AutoRX maintenence dose at every oil change.

What say ye?

 

[Saturn_Fan]

Originally Posted By: double vanos
I wonder if the above engines would have fared differently if they were treated to an AutoRX maintenence dose at every oil change.

What say ye?


Sure

 

[bobfather99]

Originally Posted By: Saturn_Fan
Originally Posted By: artificialist
Originally Posted By: yakky
Not sure which ones, but some of the earlier Saturn engines had sludge issues bad enought to warrant TSBs.

Seems like every 1.9 DOHC from 1991 to 2002 was extremely unclean.


Sludge problems? They burn some oil because of the ring design, but I haven't heard of sludging in the 1.9L Saturns. Hmm, but I've been wrong before. I own a 00 Saturn SL and am pretty studied up on these cars.

Perhaps eljefino the Saturn guru could shed some light here.



Ring design/lack of oil drain holes(pistons) causes oil consumption in Saturn 1.9 engines(SOHC and DOHC)
They run great and clean if you keep em topped off with oil..

 

[Saturn_Fan]

Originally Posted By: bobfather99
Originally Posted By: Saturn_Fan
Originally Posted By: artificialist
Originally Posted By: yakky
Not sure which ones, but some of the earlier Saturn engines had sludge issues bad enought to warrant TSBs.

Seems like every 1.9 DOHC from 1991 to 2002 was extremely unclean.


Sludge problems? They burn some oil because of the ring design, but I haven't heard of sludging in the 1.9L Saturns. Hmm, but I've been wrong before. I own a 00 Saturn SL and am pretty studied up on these cars.

Perhaps eljefino the Saturn guru could shed some light here.



Ring design/lack of oil drain holes(pistons) causes oil consumption in Saturn 1.9 engines(SOHC and DOHC)
They run great and clean if you keep em topped off with oil..

42,000 miles driven in my 00 Saturn in 11 months of cross country travel and ZERO repairs required. Oil consumption at 3/4 to 1 quart per 3-4K, which isn't bad really.

 

[rshaw125]

These engines had problems for specific years. The Chrysler 2.7 was modified several times to address the issue.I believe the Toyota engines were modified as well. Neither have sludge issues now.

 

[BrianWC]

Originally Posted By: Saturn_Fan
Originally Posted By: double vanos
I wonder if the above engines would have fared differently if they were treated to an AutoRX maintenence dose at every oil change.

What say ye?


Sure

Well it has kept mine stable. But arx CANNOT compensate for a bad mechanical design.

Just to clarify on the SAAB sludgers, the engines at fault are the SAAB B205/235 engines produced between 1999 and 2003. The models affected are the 1999-2002 Viggen, 2000-2002 9-3, and the 1999-2003 9-5.

SAAB rectified the problem for the most part in 2004 and furthermore in 2005. The nature of the modifications did not suit retrofitting to the older engines and several revisions of a PCV update kit for the models in question have been thrust on owners of these engines culminating in a 6th revision issued in 2006. The engine is still in service in the 9-5 and in current form it is a trouble-free engine that makes 260 hp/258 lb ft of torque in stock trim.

 

[Gary Allan]

Originally Posted By: rg200amp
Alot of BMWs have fallen victim to sludge.
Not due to the engine, but due to BMWs whacky 10,000-15,000 mile OCI. While they follow that OCI, they take there cars to the local shop who puts in 10w30 Dino!!!!

Owner and makers fault not the engine.



I'm of this opinion. You can tell by the sudden onset of Euro approved oils in wider distribution. The limited distribution of the spec'd oils ..coupled with American owners ...and way too long drain intervals..

It was an administrative error. It assumed to many givens in too variable environment.

 

[Artemedes]

My previous car was a '97 Camry with 5SFE 2.2. I bought it used so don't really know how well the previous owners were regarding the oil changes. I have pictures of what I discovered when I had to replace the valve cover gasket, I think there might be some there of after an ARX run, but it was too late for this one. I had to trade it off. It burned and leaked oil, but still ran very well. I have read that the oil return lines were small and in a really hot part of the engine so it just baked the oil.

Photos:
http://s92.photobucket.com/albums/l16/artemedes/camry/

 

[hotoil]

We have a 1998 Toyota Camry with the 3L V6. Mobil-1 5w30 changed every 4k miles (short trips), car now has 122k miles, runs beautifully, has never burned any oil. Taking care of the car can actually save money sometimes.