Engine, Drivetrain & Forced-Induction Have Technical Questions or Done Modifications to the G35? Find out the answer in here! (View All Posts)

Is an engine flush worth it?

Thread Tools
 
Search this Thread
 
Rate Thread
 
  #1  
Old 11-26-2006, 08:03 PM
mswc's Avatar
Crucial dude
Thread Starter
iTrader: (4)
Join Date: Feb 2006
Location: Studio City, CA
Posts: 270
Likes: 0
Received 0 Likes on 0 Posts
Is an engine flush worth it?

I took my car to get the oil changed recently (at 76000 miles) and the techs recommended I should get my engine flushed. Now when an engine is flushed, it's to get the sludge out right? Is this worthwhile to do on the G35? I've read some pros and some cons other places, but I can't seem to dig anything up on G35driver about anyone having their engine flushed. I normally use synthetic oil, but for the past few changes I've been using regular (and high mileage).
 
  #2  
Old 11-26-2006, 08:08 PM
k_hojnacki's Avatar
Registered User
iTrader: (8)
Join Date: Dec 2005
Location: Kentucky
Posts: 664
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by mswc
I took my car to get the oil changed recently (at 76000 miles) and the techs recommended I should get my engine flushed. Now when an engine is flushed, it's to get the sludge out right? Is this worthwhile to do on the G35? I've read some pros and some cons other places, but I can't seem to dig anything up on G35driver about anyone having their engine flushed. I normally use synthetic oil, but for the past few changes I've been using regular (and high mileage).
I suggest against it and most likely you do not need it. If you do flush you have the possibility of dislogging some sludge that may end up causing it to plug an oil passage. If you have been using synthetic, the chance of sludge is minimal anyway. Why take a chance. JMHO
 
  #3  
Old 11-26-2006, 08:54 PM
Msedanman's Avatar
O.F. Administrator
iTrader: (4)
Join Date: Jun 2002
Location: Cambridge, Ont. Canada
Posts: 30,341
Likes: 0
Received 9 Likes on 7 Posts
Originally Posted by k_hojnacki
I suggest against it and most likely you do not need it. If you do flush you have the possibility of dislogging some sludge that may end up causing it to plug an oil passage. If you have been using synthetic, the chance of sludge is minimal anyway. Why take a chance. JMHO
+1.....no flush. -- but don't go long intervals between oil changes. Some of these oils promise longer mileages like 10-15k miles but I don't believe in that.

Whatever oil you use, go by the normal change schedule....

C.
 
  #4  
Old 11-26-2006, 09:06 PM
GreenGoblin's Avatar
The goblin resurrection

iTrader: (66)
Join Date: Oct 2006
Location: In my garage
Posts: 25,863
Received 187 Likes on 95 Posts
^ agreeed I would never leave oil in that long just every 3 to 4k have it changed
 
  #5  
Old 11-27-2006, 09:23 AM
Callaway's Avatar
Registered User
Join Date: Sep 2006
Location: Northern Virginia
Posts: 3,762
Received 2 Likes on 2 Posts
Originally Posted by Msedanman
+1.....no flush. -- but don't go long intervals between oil changes. Some of these oils promise longer mileages like 10-15k miles but I don't believe in that.

Whatever oil you use, go by the normal change schedule....

C.
I would never think about going 10-15K miles between oil changes, but I do go 5-6K miles which shouldn't be a problem with Mobil 1.
 
  #6  
Old 11-27-2006, 10:07 AM
durtee_south's Avatar
Registered User
iTrader: (2)
Join Date: Jul 2006
Location: flour mound, tx
Posts: 170
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by Callaway
I would never think about going 10-15K miles between oil changes, but I do go 5-6K miles which shouldn't be a problem with Mobil 1.
Mobil 1 and all synthetics are good...IMO, nothing competes with royal purple oil
 
  #7  
Old 09-09-2007, 12:27 PM
05GCOUPE6MT's Avatar
Registered User
Join Date: Mar 2005
Location: WESTCHESTER
Posts: 494
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by k_hojnacki
I suggest against it and most likely you do not need it. If you do flush you have the possibility of dislogging some sludge that may end up causing it to plug an oil passage. If you have been using synthetic, the chance of sludge is minimal anyway. Why take a chance. JMHO
agree
 
  #8  
Old 09-09-2007, 06:57 PM
BadBoy06's Avatar
Registered User
iTrader: (2)
Join Date: Feb 2006
Location: Long Island, N.Y.
Posts: 3,442
Likes: 0
Received 0 Likes on 0 Posts
not worth it
 
  #9  
Old 09-09-2007, 07:45 PM
V35 Skyline GT's Avatar
Registered User
iTrader: (10)
Join Date: Jul 2006
Location: PNW in Washington
Posts: 3,942
Likes: 0
Received 7 Likes on 7 Posts
6MT Coupe
Nah...I wouldn't do it, for the many reasons already mentioned why.
 
  #10  
Old 09-09-2007, 11:35 PM
fherjohn's Avatar
Registered User
iTrader: (16)
Join Date: Oct 2006
Location: chula vista, Cali4n-i-a
Posts: 800
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by durtee_south
Mobil 1 and all synthetics are good...IMO, nothing competes with royal purple oil

redline>royal purple

but, ENEOS is top of the line. i'm using 0w-50 and my engine revs alot quicker. felt the diffrence right away. for those who don't know, eneos is the number 1 oil in japan.
 
  #11  
Old 09-10-2007, 02:03 AM
partyman66's Avatar
Registered User
iTrader: (1)
Join Date: Jul 2004
Location: Southeastern Mass.
Posts: 3,560
Received 228 Likes on 199 Posts
Originally Posted by durtee_south
Mobil 1 and all synthetics are good...IMO, nothing competes with royal purple oil
Lots of oils not only compare to Royal Purple, but are much better than it. Royal Purple is the bottom rung of the "true" synthetic oils if you look at the specs for it and compare it against those of the better true synthetics(Pour Point, Flash Point, etc).

Better oils are Motul, German Castrol, Amsoil and Redline. I've never really looked into this ENEOS oil that the other guy mentioned, so I have no comment on it.

2 few friends of mine used to use Royal Purple for race applications on their street-legal cars(Autocross, small 1/3 mile oval track racing, and a few drag-strip runs) but they both stopped when they started having excessive oil consumption issues with the Royal Purple that they never had with other oils. One of them actually had to replace his motor because he did damage when he burned through most of the oil in the sump over the course of about 1000 hard miles(several track events) that he foolishly didn't check his oil level during... and it was on his first oil change after switching over to Royal Purple from some other oil(not sure exactly what other oil he was using beforehand).

My personal recommendation is to go with German Castrol if you can find it at your local Auto Zone. It's usually about $6.10 per quart and is fantastic stuff. German Castrol is 100% different than regular Castrol Syntec(GC only comes in 0W30, but is actually a very thick oil for that rating), so if you want to find out how to identify true German Castrol go search on google for a picture of the bottle or look on the back of the bottle for the "Made in Germany" tag. The bottle will also probably say "European Formula" in a yellow section on the front of the bottle.. although just because it says European Formula, doesn't mean it's German Castrol. If it says "made in the United States" or something like that, it's not German Castrol. It should also have a green starburst on the front label... but the true indication is the presence of the "Made in Germany" on the back label that I mentioned.
 
  #12  
Old 09-10-2007, 04:48 PM
Jtrain's Avatar
Registered User
iTrader: (12)
Join Date: Apr 2005
Location: South Florida!
Posts: 3,705
Received 7 Likes on 6 Posts
I change my oil after 1,000 miles because my car didn't seem to be responding well. Especially when your boosted, its best just not to take chances.
 
  #13  
Old 09-10-2007, 04:52 PM
Nismo G's Avatar
Registered User
iTrader: (21)
Join Date: Aug 2006
Location: Austin, Texas
Posts: 7,244
Received 23 Likes on 13 Posts
Honestly i would just go fill half a tank up of some 100 octane and floor the car around here and there. That should burn any sludge out of the engine.

-Sean
 
  #14  
Old 09-10-2007, 04:54 PM
Jeff92se's Avatar
Red Card Crew

iTrader: (24)
Join Date: May 2005
Location: ɐʍ 'ǝlʇʇɐǝs
Posts: 37,810
Received 583 Likes on 496 Posts
How would any "sludge" in the engine be affected by using 100 octane and driving crazy?

Originally Posted by Nismo G
Honestly i would just go fill half a tank up of some 100 octane and floor the car around here and there. That should burn any sludge out of the engine.

-Sean
 
  #15  
Old 09-10-2007, 04:55 PM
Nismo G's Avatar
Registered User
iTrader: (21)
Join Date: Aug 2006
Location: Austin, Texas
Posts: 7,244
Received 23 Likes on 13 Posts
Originally Posted by partyman66
Lots of oils not only compare to Royal Purple, but are much better than it. Royal Purple is the bottom rung of the "true" synthetic oils if you look at the specs for it and compare it against those of the better true synthetics(Pour Point, Flash Point, etc).

Better oils are Motul, German Castrol, Amsoil and Redline. I've never really looked into this ENEOS oil that the other guy mentioned, so I have no comment on it.

2 few friends of mine used to use Royal Purple for race applications on their street-legal cars(Autocross, small 1/3 mile oval track racing, and a few drag-strip runs) but they both stopped when they started having excessive oil consumption issues with the Royal Purple that they never had with other oils. One of them actually had to replace his motor because he did damage when he burned through most of the oil in the sump over the course of about 1000 hard miles(several track events) that he foolishly didn't check his oil level during... and it was on his first oil change after switching over to Royal Purple from some other oil(not sure exactly what other oil he was using beforehand).

My personal recommendation is to go with German Castrol if you can find it at your local Auto Zone. It's usually about $6.10 per quart and is fantastic stuff. German Castrol is 100% different than regular Castrol Syntec(GC only comes in 0W30, but is actually a very thick oil for that rating), so if you want to find out how to identify true German Castrol go search on google for a picture of the bottle or look on the back of the bottle for the "Made in Germany" tag. The bottle will also probably say "European Formula" in a yellow section on the front of the bottle.. although just because it says European Formula, doesn't mean it's German Castrol. If it says "made in the United States" or something like that, it's not German Castrol. It should also have a green starburst on the front label... but the true indication is the presence of the "Made in Germany" on the back label that I mentioned.
hmmm, thats odd. I have been running royal purple 10w30 for about 20K miles now and haven't had any problems. Before that i had mobil 1 5w-30 for the entire life of the car. Royal purple is known strictly for a racing oil, but if what you say is true .

I have been wanted to try the greddy racing oils...but you have to order it.

-Sean
 


You have already rated this thread Rating: Thread Rating: 0 votes,  average.

Quick Reply: Is an engine flush worth it?



All times are GMT -4. The time now is 06:42 PM.