When doing your own oil changes, Do you??
Submitted: Sunday, Aug 14, 2011 at 18:08
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Axle
Fill the new filter with oil , before installation, Truckie friend of
mine is adamant about it!, have wittnessed a lot that don't, A dry filter fills within secs, but sometimes you do see a guage not register for a bit or a light stay on a tad longer than normal start up, Have never worried about it myself until to-day when a low oil warning buzzer on a machine seemed to take ages to go off
I'm thinking theres always enough residue to lubricate until oil gets circulated again, But just wondering about this now,EEK!!!!.
Cheers Axle.
Reply By: Fab72 - Sunday, Aug 14, 2011 at 20:12
Sunday, Aug 14, 2011 at 20:12
Absolutley no need at all...except (and there is always an exception), if you replace your oil pump. On many (not all) engines, a new oil pump and an empty filter will not prime, hence a massive delay and sometimes never being able to get oil pressure up. For a straight out oil change...why bother?
More importantly....always
check that the old filter 'O' ring has come away with the old filter. Don't assume. I have seen many a seasoned mechanic leave a trail of oil the length of the workshop because they double stacked the 'O' ring and it gushed oil out.
Fab.
AnswerID:
462604
Follow Up By: Road Warrior - Sunday, Aug 14, 2011 at 21:42
Sunday, Aug 14, 2011 at 21:42
On a rebuilt motor I've always cranked the engine with the spark plugs out to get oil to all the important bits before hot starting it for the first time. But yeah I've never filled the filter before hand after doing an oil change, never had a motor fail because of it and when it fires its only idling, it's not like I would rev the tits off it unless I had to run in a new cam or whatever and in that case the procedure in my first sentence would apply.
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Follow Up By: 120scruiser (NSW) - Thursday, Aug 18, 2011 at 08:58
Thursday, Aug 18, 2011 at 08:58
Agree. With a rebuilt engine or one that the sump has been off, I always pack the oil pump with grease, (to aid priming it) and fill the oil filter with oil if possible. On a normal oil change have never bothered.
On the Detroit series 60 diesel I used to fill the oil filters to the brim as they are screw on upwards so no spillage and stops you getting an air lock.
Filling car oil filters is a waste of time as most of the oil ends up on the ground.
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Reply By: roger ramjet - Sunday, Aug 14, 2011 at 21:01
Sunday, Aug 14, 2011 at 21:01
my 2 cents...
(I'm no mechanic, just my thoughts...)
complete waste of time. It's not the oil filter you want lubricated, its the motor. I wouldn't think 100ml extra in the filter is going make a great deal of difference getting lubrication right through the galleries and right to the top.
Assuming you've just completed an oil change then you've just dumped a heap of lubricant through the top of the motor right down to the bottom.
From what I've read most wear occurs in the first few seconds of starting before the oil is up to pressure and right to the top of the rocker cover. So you probably get more wear in the top end after leaving your vehicle unstarted for a few days.
cheers
R
AnswerID:
462610
Follow Up By: Rockape - Monday, Aug 15, 2011 at 06:54
Monday, Aug 15, 2011 at 06:54
Gee Roger,
that must be a small engine, my filter takes 1 litre to fill.
Have a good one'
RA.
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Follow Up By: Kimba10 - Tuesday, Aug 16, 2011 at 20:24
Tuesday, Aug 16, 2011 at 20:24
Hi R, have to disagree with you there, you quote ""From what I've read most wear occurs in the first few seconds of starting before the oil is up to pressure"" that I agree with, so if your filter is already full it doesnt have to send the oil to your filter first it will go straight to the areas required but if your filter is empty then it will require 2 to 3 seconds of oil getting pumped to it first instead of the major parts of the motor, In saying this my old lux did 300 thou when I sold it, 2.8D changed oil and filter every 4k since the day it was new, never filled the new filter up as it was on its side so impossible to keep oil in there when screwing it back on, oil light stayed on for about 2 to 3 seconds longer after an oil change compared to when I did a cold start with old filter already in place. The petrol prados I had/have I flick the key off and on a few times to get the oil up to the to the filter, the 4L V6 petrol prado like to rev at around 1800 on start up when cold and I dont like it revving that hard while waiting for oil to get to the filter which on the 4L V6 prado is right at the top of the motor. I drain my'n at night before I go to bed, I like to drain it for as long as possible, you would be suprised how much extra you get out when its hot then let drain over night, h..............
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Follow Up By: roger ramjet - Tuesday, Aug 16, 2011 at 21:20
Tuesday, Aug 16, 2011 at 21:20
HI
I own same 2.8D hilux, so I know what you mean. I guess we are assuming that an oil change results in an extra 2 seconds wear whilst the filter fills as opposed to cold start.
Iif there were significant negative effects wouldnt they'd advise to tip your motor upside down before starting after every oil change ! LOL ! ;-)
Granted if I had a huge D10 dozer which took litres of oil in the filter - then it might be a valid point. But in a tiny little car motor I can't see it being an issue.
My lux is on 260k and still going fine, I don't really want to sell it :-)
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