kerosene flush?

[THe_DeTAiL3R]

I got reading this thread I found in google trying to find info on using kerosene to flush engines. 1qt oil, 3qt kerosene run at idle for 10min drain and repeat. Well here is the thread....

 

http://forums.probetalk.com/showthread.php?t=4052

 

Is that overkill on our engines? I'd like to clean out my engine since it's still got coolant in it after doing the LIM a month ago, and I changed the oil twice...

[gp90se]

I have done it to engines that are filthy (my blazer had over 15k on the sludge in the crankcase) but it will not do anything good 2 the seals, gaskets and worst case, it gets on the berrings and ya need a new motor. I wouldnt bother.

[GutlessSupreme]

I have done it to engines that are filthy (my blazer had over 15k on the sludge in the crankcase) but it will not do anything good 2 the seals, gaskets and worst case, it gets on the berrings and ya need a new motor. I wouldnt bother.

 

after you continually told me to do it to the STE

 

you really try to make me kill my cars, don't you?

[Supreme Cutlass]

If I did a motor flush, I'd probably take off the oil pan and clean it afterwards.

[DaveFromColorado]

umm.. you want 3qt oil, 1qt kerosene, not the other way 'round, or you'll wash your bearings and smoke your motor

 

I've done DOZENS of kerosene flushes, always with good results - Like Supreme Cutlass said, this would be a good time to clean your oil pan.

 

Here's how I do my flushes...

 

I get 12 qts of CHEAP off-brand motor oil

4 qts of good motor oil

4 of the cheapest oil filters

1 good oil filter

4 qts of GOOD motor oil.

 

Change the oil like normal using the cheap oil and filter - add 1 qt of kerosene - start and idle for 5 minutes Repeat until all kerosene is used.

 

Once you've changed the oil 4 times with the kerosene flushing, change it one more time with the cheap off brand oil, idle it for 5 to 10 minutes with NO kerosene just clean cheap oil and a clean filter.

 

once that's done, change it one last time with the good oil, and good filter, start 'er up, and drive away.

 

do NOT drive your car witht he kerosene, remember, kerosene is a FUEL oil, it does burn.

 

Don't pour the kerosene into a hot engine, allow the engine to cool, if you don't ... well then you're just asking for problems.

 

--Dave.

[THe_DeTAiL3R]

Yeah, all that kerosene they talk about on that probe forum scares the shit outta me. I don't wanna spin a bearing, as there is potentially damage already done from coolant being mixed with the oil.

 

Hmm okay so you can't just pour like half a qt (or however much regular engine flush in a can is) when engine is hot, run for 15min, drain and be on your way? That's the way I always did it with like STP engine flush or whatever.

 

so doing the math (for me anyways)

I get 12 qts of CHEAP off-brand motor oil - about $5/gallon, so like $15

4 qts of good kerosene (I think you meant rather than motor oil)

4 of the cheapest oil filters-$4 each-$16

1 good oil filter$5

4 qts of GOOD motor oil. -$10

 

~$60 inc tax. (CND prices)

I'm not sure how much kerosene costs, but I'm assuming it's cheap so whatever. Even though I work at a dealership my discounts isn't that great.

 

I think I'm just gonna drain my oil out today after a vigorous drive, leave the filter on (less than 1000miles on it). I'll see how the oil looks in another 1000miles and dump in some STP engine flush with GOOD oil and AC/D filter as I usually use.

[luminal67]

kerosene makes rubber seals swell up. they will eventually deteriorate. that ''high mileage'' engine oil they sell, has kerosene added in it. the kerosene swells the seals and they seal up again for a while. thats why they say it reconditions your seals.

[DaveFromColorado]

those can's of 5 minute motor flush things are about 1 qt.

 

I always recomend adding it to a cool motor, as you're dealing with fuel oil, which burns - I've only heard of ONE starting on fire from it, the guy spilled it on the exhaust pipe - but thats' why I always* recomend a cool motor. Why chance it if ya don't have to.

 

I buy my kerosene for 2.16 a gallon at the pump. doing the flush the long way is the best way to clean all the crap out, I've done it several times and then that last non kerosene oil change will help make sure you get all the extra kerosene out of the system.

 

--Dave.

[EviLette]

Wow. I get paranoid rolling up under my car on a creeper with it on jackstands... I don't think I could handle pouring kerosene in it... Internal combustion engine or not... I'm an accident-prone pyromaniac... and a clumy saggitarius to boot. I just don't think I'll risk that on my baby, lol.

[gp90se]

I have done it to engines that are filthy (my blazer had over 15k on the sludge in the crankcase) but it will not do anything good 2 the seals, gaskets and worst case, it gets on the berrings and ya need a new motor. I wouldnt bother.

 

after you continually told me to do it to the STE

 

you really try to make me kill my cars, don't you?

 

You have pieces of camshaft in your motor...

 

we both know the tste's motor was filthy, inside and out, so yea, I would have flushed it with kero.