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Is an engine flush worth it?

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Old Sep 10, 2007 | 04:56 PM
  #16  
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I use Castrol 15w-50
 
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Old Sep 10, 2007 | 04:57 PM
  #17  
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Sean. Honestly. Is "not had any problems" supposed to be a testiment of the quality of an oil? You could use the cheapest conventional oil for $0.99/quart and not have problems.

Originally Posted by Nismo G
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
 
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Old Sep 10, 2007 | 05:03 PM
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Originally Posted by Jeff92se
Sean. Honestly. Is "not had any problems" supposed to be a testiment of the quality of an oil? You could use the cheapest conventional oil for $0.99/quart and not have problems.
True. What i ment from "not any problems" is the oil so far is great. The engine idles smoother than it did with the mobil 1 and it just seems to run better while at the track. I have not had any consumption issues. So far IMO its better than mobil 1

-Sean
 
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Old Sep 10, 2007 | 05:06 PM
  #19  
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Originally Posted by Nismo G
True. What i ment from "not any problems" is the oil so far is great. The engine idles smoother than it did with the mobil 1 and it just seems to run better while at the track. I have not had any consumption issues. So far IMO its better than mobil 1

-Sean
IMHO all that proves is that it's viscosity is low. Having/not having consumption issues isn't an oil brand issue. You either have an oil burner or not. I'd tend toward Mobil 1 even though it's not a true synthetic. Because it's addtive package is geared toward the consumer and not the racer. ie.... actually using the oil for some extended time vs getting changed after ever race.
 
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Old Sep 10, 2007 | 05:12 PM
  #20  
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Originally Posted by Jeff92se
How would any "sludge" in the engine be affected by using 100 octane and driving crazy?
Usually racing fuel burns a little hotter and getting the car to "open" up is going to flush it out a little bit by just burning off access buildup.

-Sean
 

Last edited by Nismo G; Sep 10, 2007 at 05:34 PM.
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Old Sep 10, 2007 | 05:16 PM
  #21  
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Originally Posted by Jeff92se
IMHO all that proves is that it's viscosity is low. Having/not having consumption issues isn't an oil brand issue. You either have an oil burner or not. I'd tend toward Mobil 1 even though it's not a true synthetic. Because it's addtive package is geared toward the consumer and not the racer. ie.... actually using the oil for some extended time vs getting changed after ever race.
From my observations...with mobil 1, occasionally, my oil levels would differ. It wasn't all the time, but here and there after a hard track sesion my oil level was lower than before. With the royal purple i haven't had a problem with oil levels being different - they have been consistant.

-Sean
 
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Old Sep 10, 2007 | 05:19 PM
  #22  
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Driving it "harder" will make the engine run hotter. But those areas aren't where the "sludge" is located. Sludge is built up in the oil gallies, heads, oilpan, etc.... Oddly enough from excessive heat.

Originally Posted by Nismo G
Usually racing fuel burns a little hotter and getting the car to "open" up is going to flush it out a little bit by just burning off access buildup.

-Sean

PS - Im not all technical on racing fuel vs regular gas. I know a little bit about the knocking and compression, but feel free to correct me if im wrong on the racing fuel burning hotter.
 
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Old Sep 10, 2007 | 05:23 PM
  #23  
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Originally Posted by Jeff92se
Driving it "harder" will make the engine run hotter. But those areas aren't where the "sludge" is located. Sludge is built up in the oil gallies, heads, oilpan, etc.... Oddly enough from excessive heat.

hmmm, but within your heads are your exhaust valves. If you run the car harder with a higher octane fuel it will burn hotter, which should burn off sludge that is left on the exhaust valves...?

My engine must have a ****load of sludge if it comes from running the car hard.

-Sean
 
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Old Sep 10, 2007 | 05:26 PM
  #24  
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The sludge the OP is referring to isn't that type IMHO. You are talking about deposits. Not sludge.

Originally Posted by Nismo G
hmmm, but within your heads are your exhaust valves. If you run the car harder with a higher octane fuel it will burn hotter, which should burn off sludge that is left on the exhaust valves...?

My engine must have a ****load of sludge if it comes from running the car hard.

-Sean
 
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Old Sep 10, 2007 | 05:29 PM
  #25  
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Originally Posted by Jeff92se
The sludge the OP is referring to isn't that type IMHO. You are talking about deposits. Not sludge.
That is what i had said as well carbon deposit, but i thought you said i was wrong. My fault...

Anyways, way off topic! Lets not thread jack!
-Sean
 
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Old Sep 10, 2007 | 05:31 PM
  #26  
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You did?
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
 
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Old Sep 10, 2007 | 05:36 PM
  #27  
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Originally Posted by Nismo G
Usually racing fuel burns a little hotter and getting the car to "open" up is going to flush it out a little bit by just burning off access buildup.

-Sean
That's where i said it - didn't say carbon buildup, but that is what i was refering to.

-Sean
 
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Old Sep 10, 2007 | 05:38 PM
  #28  
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I like the motul 8100-Eco-nergy
 
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Old Sep 10, 2007 | 05:40 PM
  #29  
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Originally Posted by jonnylaw
I like the motul 8100-Eco-nergy
I was just reading up on the motul products. I have heard great things about them, but i can't find them around any of the stores...

-Sean
 
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Old Sep 10, 2007 | 05:41 PM
  #30  
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Originally Posted by Nismo G
I was just reading up on the motul products. I have heard great things about them, but i can't find them around any of the stores...

-Sean
mynismo.com--Eddie/Andy at perform. nissan--they have them for good price and even a big jug of it (5L).
 
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