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11-02-2009, 05:29 PM | #1 |
Drives: Yaris RS 2007 Join Date: Oct 2006
Location: Canada
Posts: 124
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Engine flush
My car just passed 50K, is it a good time for a engine flush??
if it really need a flush, I would like to do it myself. the question is do I need to remove the oil pan and give it a nice clean after I do the flush?? Thanks for help |
11-02-2009, 06:25 PM | #2 |
Scrubble with a poke.
Drives: 2009 Yaris LB Join Date: Jul 2009
Location: Holland PA.
Posts: 166
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Depends on the product you are using. Some are additives to the oil and others are a complete system you run for a few minutes and drain back out.
Where I work we use a gumout system. Pour the gallon into the engine cycle it with a new filter and drain back out and replace the filter again. You can do it, it wont hurt anything. Just don't expect it to change the car all that much.
__________________
"If you cannot find truth right where you are, where else do you expect to find it?" Dogen |
11-02-2009, 06:53 PM | #3 |
Drives: '09 Yaris carmine red 2d HB Join Date: Jun 2009
Location: Middletown, NY
Posts: 1,501
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Actually, if you change the oil regularly, there shouldn't be anything that needs to be flushed.
The so-callled "power engine flushes" performed by dealers is a complete scam and can actually be harmfull to an engine. |
11-03-2009, 02:54 AM | #4 |
Drives: Yaris RS 2007 Join Date: Oct 2006
Location: Canada
Posts: 124
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thanks for the input. I think what i need to do now
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11-03-2009, 01:14 PM | #5 |
Drives: 2008 yaris, stripped, red Join Date: Jan 2009
Location: SE Texas
Posts: 977
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use rislone. at autozone with the oil addatives, usually higher, in a yellow bottle. stuff is amazing.
i'll tell you this, my jeep had 135k miles on it when i got it...i ran rislone through after an oil change. it says to replace and just change oil at next interval but i didnt want to wait that long. so i changed it at 1k miles. the oil filter weighed almost twice as much when i changed the rislone filter. the thing weighed a ton...and if you looked in it you could see all kinds of stuff in there...chunks of carbon the oil was much more black than normal. even after a 5k mile interval the rislone oil was way darker. |
11-03-2009, 05:08 PM | #6 | |
Scrubble with a poke.
Drives: 2009 Yaris LB Join Date: Jul 2009
Location: Holland PA.
Posts: 166
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Quote:
A well maintained yaris at 50k should have a fairly clean engine. You can do this if you want but its not going to change much. Your deposits are going to be minimal at best.
__________________
"If you cannot find truth right where you are, where else do you expect to find it?" Dogen |
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11-03-2009, 05:41 PM | #7 |
Drives: Yaris RS 2007 Join Date: Oct 2006
Location: Canada
Posts: 124
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I change my oil every 7k and I use Motul 5100 fully synth. is that mean I am ok without doing a engine flush? cause I am really worry about the engine flush clean too much of my engine
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11-03-2009, 09:22 PM | #8 |
Drives: 2006 yaris Join Date: Oct 2008
Location: Puerto Rico
Posts: 536
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11-03-2009, 09:50 PM | #9 |
Scrubble with a poke.
Drives: 2009 Yaris LB Join Date: Jul 2009
Location: Holland PA.
Posts: 166
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7k is a loooong time to have used oil in your motor synthetic or not. I feel 5k is too long. I do mine very 3k give or take a few. I have 6800 on mine and its had 3 changes since I bought it. 1500, 3000, 6000.
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"If you cannot find truth right where you are, where else do you expect to find it?" Dogen |
11-03-2009, 11:08 PM | #10 |
Half a Bubble Off Plumb
Drives: 2009 Yaris Sedan Join Date: Mar 2009
Location: Bristol, Tennessee, USA
Posts: 1,593
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That's excessive, but won't hurt anything other than your pocketbook.
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11-03-2009, 11:43 PM | #11 |
JDM Fred
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I'm also one for doing it every 3k... I even asked my service manager about flushes and they said it was a waste is you properly maintain your vehicle. You are better off changing your oil and adding additives and then changing it again after 1-1.5k miles or after a month or two.
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11-04-2009, 11:10 AM | #12 | |
Audio Junky
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Quote:
The yaris isn't a truck/suv... its not a heavy duty vehicle that has to work hard. buildup should not be a problem unless the driver uses only the worst gas possible, never revs the engine past 3k, and goes longer than 5k with dino oil before changes. Even then... it'd probably take longer than 50k miles for significant buildup to occur. Treatment before 75,000 miles is ridiculous I think. |
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11-04-2009, 11:36 AM | #13 |
Drives: 08 3DR 5M Bayou Blue; 09 Fos Join Date: Oct 2008
Location: New Hampshire
Posts: 622
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Little know or believed factoid:
Used oil lubricates better than new, as proven in many white papers out there from auto industry studies (sorry no links at hand). So, over-changing your oil can actually cause more wear than doing the 5K interval. The mechanism of increased wear is that the high level of detergent additives in the NEW oil (usually a Ca metal organo-metallic) compete with the antiwear agents for surface area attachment. Until the detergent level has retreated(~ 1.5K mi) the loss of excess wear protection occurs. CAVEAT: If you do only short trips <5miles in cooler climates and rarely do highway driving, you may deplete your oil base reserve before 5K and have acid (PH) buildup, though. Last edited by TheSilkySmooth; 11-04-2009 at 11:38 AM. Reason: sp |
11-04-2009, 01:12 PM | #14 | |
Drives: '09 Yaris carmine red 2d HB Join Date: Jun 2009
Location: Middletown, NY
Posts: 1,501
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Quote:
I seached the net and could not find anything at all to back that up. I have a suspission that the theory that used oil is better was taken out of contex. |
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11-04-2009, 02:03 PM | #15 |
Drives: 08 3DR 5M Bayou Blue; 09 Fos Join Date: Oct 2008
Location: New Hampshire
Posts: 622
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No, I explaned the suspected mechanism. This is not theory, it has been validated by rigorous industry tests. IIRC, it was a GM paper. Think I read the paper synopsis through a link on BITOG but was not able to save it. And its not "used oil is better" it is that over changing oil may lead to more wear due to the fresh detergent action and other factors.
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11-05-2009, 09:53 PM | #16 | |
Scrubble with a poke.
Drives: 2009 Yaris LB Join Date: Jul 2009
Location: Holland PA.
Posts: 166
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Quote:
Thats not the argument though. I have always changed my oil at 3k. Even with synthetics. But they were all turbo cars and high hp ones. My legacy also gets 3k oil changes every 3-4 months with regular old 5-30. I just dont see how a 3k service is a bad thing.
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"If you cannot find truth right where you are, where else do you expect to find it?" Dogen |
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06-15-2010, 10:36 AM | #17 |
Drives: 2013 Chevy Spark 1LT 5-speed Join Date: Oct 2008
Location: Oklahoma
Posts: 1,185
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Only if you use something too strong, like chemtool's B-12. I did that once on a GM car and had to pull the pan because the oil pickup got plugged up. I've used Amsoil's flush a lot with no problems.
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06-15-2010, 04:10 PM | #18 |
Half a Bubble Off Plumb
Drives: 2009 Yaris Sedan Join Date: Mar 2009
Location: Bristol, Tennessee, USA
Posts: 1,593
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I've used Chemtool B12 exactly the way Seafoam is used, as a top end carbon remover. Works.
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