GPBox Posted July 25, 2008 Share Posted July 25, 2008 Hi all, as part of my 'big' oil change (and sump bolt fix), I thought I'd drain the Apollo too. But I've found the drain plug to be very difficult to loosen. Should the hex key simply unscrew ?....the large nut is not a locking nut right ?. Do I really need to drain the last of the oil in the Apollo, or can I leave as is ? finally, I dont know what sort of oil was in it last time, but I am going to use fully Synthetic, does it matter if the old oil (left in the Apollo) is not full Synch ? thanks all Graham Link to comment Share on other sites More sharing options...
mav Posted July 25, 2008 Share Posted July 25, 2008 use a large adjustanble on the 'big nut' on the apollo and then use the correct sump plug spanner and breaker bar. You could alternatively tip the apollo up and let the oil drain back via the bottom hose. I find upto 3/4 litre held in the bottom of the apollo at oil change time. you should already have a fully synth in there, but if there is a bit of the old oil left in, even if it's not fully synth, it'll probably be ok. Link to comment Share on other sites More sharing options...
GPBox Posted July 25, 2008 Author Share Posted July 25, 2008 thanks, do I need to 'crack' the 'big nut' before the Apollo drain plug can be released ? (ie like a locking nut)....or is the 'big nut' static and fixed to the tank ? tx Graham Link to comment Share on other sites More sharing options...
Grubbster Posted July 25, 2008 Share Posted July 25, 2008 The big nut is part of the tank so don't turn it! It is there so that when you undo the allen headed plug you have something to grip onto, otherwise the tank itself will buckle and crack. Please support Roger in his Indian Ocean rowing race! 4350 miles in about 100 days Link to comment Share on other sites More sharing options...
Mick Day Posted July 25, 2008 Share Posted July 25, 2008 I can't see why we get so uptight about getting all the old oil out. We change the oil so frequently (well most of us do) that any left behind will be well diluted by fresh. Apollo system takes circa 7.5 litres in total so if 0.75 litres left??????? so what! Oh & by the way there is some left in the head & the block. Total strip to remove? When I had an Apollo I found that most would drain out when the oil filter was removed. I never bothered with the drain plug as it had been overtightened (loctite?)from new. On a similar thread a Porsche 993 takes about 11.5 litres to fill from empty but about 9.5 litres at each oil change. 2 litres is left in the block, heads & oil cooler system which can't be drained unless it's stripped. Go figure. Link to comment Share on other sites More sharing options...
GPBox Posted July 25, 2008 Author Share Posted July 25, 2008 Cheers Mick, I'll leave as is Graham Link to comment Share on other sites More sharing options...
irrotational Posted July 25, 2008 Share Posted July 25, 2008 One argument for removing it is that it also had a magnet built in so it would be useful to clean that up once in awhile.... My apollo doesnt have the big hexagonal nut so I have no chance of getting the plug out.... --- my mind is blank.... Link to comment Share on other sites More sharing options...
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