|
Post by sterlin on Jan 6, 2010 19:00:11 GMT
I am about to do a service on my g(89/90) 998cc mini Mayfair automatic. can anyone tell me what is the best engine flush to use. i have been told to use a 5Lt oil engine flush instead of the type that you add to the old oil. thanks Paul
|
|
|
Post by minithirtyauto on Jan 6, 2010 19:47:04 GMT
I don't think you should use engine flush in a mini automatic for two reasons. 1. Engine flush can damage the clutch plates and cause the box to slip 2. Its very difficult to drain all the oil out of a mini auto as the torque converter hangs onto a couple of pints, so the flush can stay in the engine which it is not designed to do and damage/premature wear on other engine components. I've found the best way to flush an engine is just to use normal 20w/50 and do lots of oil changes, over a short time span. I have also used 10w 30 oil for a hundred miles or so and that seemed to help clean up one of my mini automatics that I owned where the oil was very dirty and the gearbox was a little slow on the uptake, because it is thiner, if oil ways are a little blocked it can pass through more easily.
|
|
|
Post by Admin/Founder 2 on Jan 6, 2010 19:49:15 GMT
Hi Paul don't use Engine Flush you add to the existing Oil as used with modern cars as its simply no good for our beloved Engine/Gearbox combo Best bet is get a decent quality 20w50 mineral oil but get twice as much ie/get two 5 litre Cans drain your oil as usual and refill with the first can Then run the car using this then drain that oil and refill it with the second can The Torque Converter always holds several pints so therefore if you used engine flush it could hold on to some of that too Using 20w50 mineral Oil as a flushing agent at least if any is left behind it wont cause any damage
|
|
|
Post by morris1100 on Jan 7, 2010 10:13:54 GMT
Engine flush is snake oil. It was only invented to make money for the maker. It does nothing. It achieves nothing and can damage any engine it is used in.
Say no to engine flush.
|
|
|
Post by jockduck on Jan 7, 2010 10:41:02 GMT
If you really want to do a complete drain you can remove one of the converter drain plugsand turn the engine 180 deg to empty the converter, it willbe messy, never done it with the engine in-situ I guess it depends how obsessed you are. To ge some extra out of the sump jack the car up on the left side, and leave overnight. the sump casing has lots of internal ribs so some oil gets trapped when the engine is level.
Ian B
|
|
|
Post by minithirtyauto on Jan 7, 2010 13:38:34 GMT
good tip about jacking the car up slighly and leaving it over night
|
|
|
Post by mowogdave on Jan 7, 2010 15:05:23 GMT
After good looking results on the first try I'm planning to do a flush again on the next oil change. But not using the evil flushing stuff - I'll use finest 20/50 grade oil as used in the final re-fill. One tip I picked up - there are some deals where you can buy 2 cans of oil more cheaply. Buy 2 for £20, or buy 2 and get a free oil jug type of thing. This makes it more affordable. The deals I got were at shows in the summer. No idea where to get them at this time of year, although my local motor factors usually have something available
|
|
|
Post by minithirtyauto on Jan 7, 2010 16:59:15 GMT
We all like a bargin, good tip. Out of interest did you try any of the mothods mentioned on the forum for releasing the 2 pints or so from the torque convertor? Glad your change produced good results, don't leave too long before doing another change. Personally if the oil was really dirty I would do another change after just a few hunderd miles or a couple of weeks.
|
|
|
Post by sterlin on Jan 7, 2010 19:57:28 GMT
thank for the replys i will get 2 5lt 20/50 oils thanks again for the help paul
|
|