Oil Change via dipstick with no filter change?

Oil Change via dipstick with no filter change?

Author
Discussion

cb010

Original Poster:

76 posts

111 months

Tuesday 8th September 2015
quotequote all
I have a Hyundai ix35 (petrol) which is under warranty. It has a two year/20,000 mile service interval. It is now at 10,000 miles and is almost one year old. I've just bought it having been misled by hearing the "service isn't due till next year" and thought that meant the first service had just been done.

It has Shell Ultra Professional oil from the factory which looks blacker than I'd like.

Instead of paying £129 for an oil change at Hyundai, could I use an oil suction gun to remove the current oil and simply refill with Shell oil I can buy for £30? This would give the engine clean oil (apart from the bit left in the filter/bottom of sump).

My motivation is the long term health of the engine as I don't believe two year intervals are a good idea. Kia use the same engines but demand an annual service. This way they won't know about the oil change as the original Hyundai branded filter will still be there.

BigTom85

1,927 posts

171 months

Tuesday 8th September 2015
quotequote all
Why don't you purchase a Hyundai filter from the parts desk? Probably about £8.

Yes you can suck out through the dipstick, but why not just drain the sump the old fashioned way?

cb010

Original Poster:

76 posts

111 months

Tuesday 8th September 2015
quotequote all
If the original filter is warranted to last two years collecting particulates, then I don't see any reason to change it... whereas for oil it loses its efficacy over time.

Also if I change the filter I'll need to get a garage to do it (I have a sloped driveway) from underneath. In that case I'd get the oil drained via the sump too, but 1hr labour cost + oil + filter is not too far off Hyundai's oil change price.

The odd thing is that the previous owner (a lease firm) uses Kwik Fit for all servicing. Had they serviced it, I'd have got a full warranty, but apparently if I take it to KF or any other fast fit chain that could invalidate the warranty...

BigTom85

1,927 posts

171 months

Tuesday 8th September 2015
quotequote all
Google 'block exemption'. Basically as long as you use a VAT registered garage and OEM parts then you're warranty remains intact.

Theres no harm in sucking the oil out via the dipstick. Quite a few cars don't even have sump plugs these days, some don't have dip sticks either!

A lot of oil filters are the cartridge type that are replaced from the top. Id definitely check that first as I'm struggling to get my head around changing the oil but not the filter to be honest.

cb010

Original Poster:

76 posts

111 months

Tuesday 8th September 2015
quotequote all
I understand it's not normal to change oil but not the filter.

Yet surely it's better to at least change the oil so that it is able to protect the engine?

I'm sure the manufacturer has done its research to ensure the engine will last the warranty period with two year oil changes but they won't care if it fails a couple of years outside the warranty. They're in the business of making new cars, not ensuring old ones last as long as possible.

was8v

1,937 posts

195 months

Thursday 10th September 2015
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Ask Hyundai if they will price match an oil change only.

I have had VW price match national.co.uk a few times + a couple of quid extra for their OE filter.

At £55 it wasn't worth getting my hands dirty and disposing of the old oil.

You are within your rights to use any VAT reg garage and maintain warranty. Just make sure they use the correct spec oil and a genuine filter.

Mr2Mike

20,143 posts

255 months

Friday 11th September 2015
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cb010 said:
I understand it's not normal to change oil but not the filter.

Yet surely it's better to at least change the oil so that it is able to protect the engine?
But better still to change the oil filter as well. It's a cheap part and it's not rocket science to fit so why wouldn't you change it?

paintman

7,687 posts

190 months

Friday 11th September 2015
quotequote all
I always change the filter when I change the oil, for the price of a filter its false economy not to.
If the oil is 'blacker than I'd like' then even more reason to change the filter.
Incidentally, as far as the oil being black is concerned that's normal. Might take a while on a brand new car but it'll get there & once it does then it will stay that way, new oil getting black almost immediately due to old oil still in various parts of the engine. The only one of our cars that always shows clean oil on the dipstick is my RRC & that's only because it runs for 90% of the time on LPG. However, when I drain the oil it still comes out black.....

Locknut

653 posts

137 months

Friday 18th September 2015
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cb010 I agree completely with your thinking and I am doing the same myself.

We have two newish cars in the household that have 2 year / 18k mile service intervals. (Hyundai and BMW) I think this is too long and am afraid the warranty will be void if I change the oil myself. My solution is as you suggest: pump out the oil through the dipstick and leave the filter. That way there is no sign that I have done anything.

Of course it would be better to change the filter and they are cheap, but the original filter would be there for two years anyway if you did nothing.

Mojocvh

16,837 posts

262 months

Saturday 19th September 2015
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I use a vacuum pump for intermediate oil changes.

Mind you I do mine at a max 2500 as the four pot longitudinal quattros [petrol turbo] hammer their oil anyway, I used a ir gun today after a moderate run 290c in the middle of the turbo 145 on the turbo oil return pipe after 5 minutes idle with bonnet open eek

powerstroke

10,283 posts

160 months

Sunday 27th September 2015
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I do the filter at the recommended distance or time but change my oil in-between the only down side is some old oil will remain in the filter so best to use the same brand and grade of oil,
i would think the main danger of not changing the filter is is the media in it degrading over time
and breking up rather than blocking up with contaninants if you left it on for years ..

theshrew

6,008 posts

184 months

Tuesday 29th September 2015
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Oil that's blacker than you would like ? its oil it turns black.

Op just change the oil with the correct oil and buy a genuine filter. You won't void warranty for over servicing the vehicle. Or if you are that worried drop a email to the manufacturer first.

Well done for wanting to look after your vehicle. Good lad :-)

227bhp

10,203 posts

128 months

Tuesday 29th September 2015
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I would do the filter, they will never know it's been done.

hman

7,487 posts

194 months

Tuesday 29th September 2015
quotequote all
Best to do both but the filter will still do its job if you don't.

On the dirt bike (think high stress race engine) I use to change the filters every 2nd oil change, no problem.

anonymous-user

54 months

Sunday 11th October 2015
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I live on a hill as well and I just jack the front of the car up to get it reasonably level and then drain the oil. Is that an option for you?
If it was me, I would change the filter as well and if it ever came to a warranty claim and they were even considering paying, you would have good grounds to argue that you were helping the engine by changing the oil filter, especially if you use an OEM one. That's if they could tell it had been changed, which I doubt.

Gerradi

1,541 posts

120 months

Wednesday 14th October 2015
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My school of thought has/is always change the filter & fluids on a more regular basis than stated, I always buy oil/air/gearbox/fuel filters from the main dealer & then an equivalent graded oil/atf etc

When MB brought out the E55/C32/ & all cars that used the tiptronic 5 speed box it said it was sealed for life & no fluid change needed, then after a number of years they decided it was every 30,000 miles...New filter at the very least, also as has been mentioned oil degrades & remember oil is a coolant to the parts as well so I like to change it more frequently .