Engine flush
Joined: Apr 2002
Posts: 38,078
Likes: 310
From: The hell where youth and laughter go
This stuff is highly controversial you know 
The bottom line is - if you change the oil regularly enough and aren't suffering oil degradation and sludging issues (from hard or short use) you'll never ever need to use Flush.
As fresh engine oil will have nice and fresh deteergents and acid neutralisers to help sort that out anyway.
Conversely you shouldn't use it on an engine that is sludged up either, as it could move the sludge to places you don't want it (i.e bearings and blocks oilways).
There is also potential issue of any remaining flush inside teh engine affecting the final viscosity of oil (although highly doubtful)
And finally, you know what Subarus are like at spitting out Big ends. The last thing you want is to give it an excuse.

The bottom line is - if you change the oil regularly enough and aren't suffering oil degradation and sludging issues (from hard or short use) you'll never ever need to use Flush.
As fresh engine oil will have nice and fresh deteergents and acid neutralisers to help sort that out anyway.
Conversely you shouldn't use it on an engine that is sludged up either, as it could move the sludge to places you don't want it (i.e bearings and blocks oilways).
There is also potential issue of any remaining flush inside teh engine affecting the final viscosity of oil (although highly doubtful)
And finally, you know what Subarus are like at spitting out Big ends. The last thing you want is to give it an excuse.
Trending Topics
Just phoned up prosport to go get my oil filter, air filter, and fuel filter....they want £23 odd for a standard air filter....might aswell buy the JR filter for £35 or the SIMOTA RACING one for £30....bloody cheek.
Bob
Bob
Originally Posted by bobthebodger
Just got my silkolene oil off opieoils
.....10w-50w this is what he reccommeded for my 94 wrx 260ps model.
Bob
.....10w-50w this is what he reccommeded for my 94 wrx 260ps model.Bob
G.
Hi all, just done my oil change, filled filter put new sump plug seal on and filled it with 4.5 litres of oil and turned her over. Why am i not getting a reading on the dip stick...too scared to drive it now.
bob
bob
Joined: Apr 2002
Posts: 38,078
Likes: 310
From: The hell where youth and laughter go
The oil ways +filter etc. can take over 0.5litres....which will pull it below the level of the dipstick - especially if the oil filter was not pre-filled. Also some bottles of oil are misleading with their rated quantity (usually against your favour
)
BTW for future reference you should not dump in 4.5 litres straight away in one go, it can risk overfilling if you haven't managed to drain out all the oil. (looks like you got away with it though
). Better to put in 4.0litres, start it up and let it run for a few seconds, then switch off, wait a few seconds and then recheck and fill as appropriate.
There is a about a difference of about half a pint (LESS than 500ml) between max and min, and it'll take at least 30seconds to drain down from the filler to the sump.
And don't worry - if 4.5 liters went in...it's still in there (unless you forgot to put the sump plug back in - I've seen it happen
)
)BTW for future reference you should not dump in 4.5 litres straight away in one go, it can risk overfilling if you haven't managed to drain out all the oil. (looks like you got away with it though
). Better to put in 4.0litres, start it up and let it run for a few seconds, then switch off, wait a few seconds and then recheck and fill as appropriate.There is a about a difference of about half a pint (LESS than 500ml) between max and min, and it'll take at least 30seconds to drain down from the filler to the sump.
And don't worry - if 4.5 liters went in...it's still in there (unless you forgot to put the sump plug back in - I've seen it happen
)
Last edited by ALi-B; Jan 26, 2006 at 05:31 PM.
When I last done an oil change on mine, I did notice that it took a long time to register on the dip stick. You have put 4.5l of oil in, so long as it didn't come back out somewhere, start the engine and let it warm up on idle. Then turn the engine off and wait 5-10 mins to make sure all the oil has returned to the sump and check the dip stick again. Bear in mind that the new oil may be difficult to see on the stick until it picks up a bit of colour from the engine. The oil filter may take up a little bit of oil, but if you do add any more oil be careful not to overfill, as the difference between the high and low measures on the stick isn't very much, 1/2 a pint or so I think. Also it is apparently better to have the oil at the low level as oppose to the high level, as I am led to believe the extra oil gets blown in to the induction, oiling things up. If you want anymore advise pm me.
Rob.
Rob.
never use engine flush in a subaru,as i learnt to the garages cost.had mine serviced,they used engine flush.They paid for the rebuild when it spun a shell 20 miles down the road!!!General concensus on here is never use flushing oils.
chris
chris
Originally Posted by bobthebodger
Does anyone use engine flush ??? ....im doing my oil change today and was wondering if you guys use it or not.
Bob
Bob

Originally Posted by bobthebodger
Thanks guys, i did the correct procedure...just didnt put enough in, all sorted now.
Bob
Bob

When you say 'Correct Procedure' do you mean the **** procedure, or the normal procedure?
In other words did you just start the car
or did you crank it over with the crank sensor disconnected 
Pete
Thats what i did as it needs topping up atleast 3 times
.....dropped the oil then unscrewed the oil filter (stabbed it with a screw driver) ...left it to drip for a while then put the new washer on the sump plug and screwed back in engine and nipped it up. Oiled the new filter around the rim and tightened by hand until tight then 1/4 of a turn, filled with new engine oil and fired her up. Jobs a gooden.
.....dropped the oil then unscrewed the oil filter (stabbed it with a screw driver) ...left it to drip for a while then put the new washer on the sump plug and screwed back in engine and nipped it up. Oiled the new filter around the rim and tightened by hand until tight then 1/4 of a turn, filled with new engine oil and fired her up. Jobs a gooden.
Thread
Thread Starter
Forum
Replies
Last Post





