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Changing oil regularly...; a waste of your hard-earned?
Topic Started: Fri Jan 12, 2007 12:54 pm (792 Views)
190D 2.5
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Interesting research below. Suggests frequent oil changes is money down the drain. What do you reckon?

http://neptune.spacebears.com/cars/stories/mobil1.html
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mr_s
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That's assuming you use Mobil 1's top oil in a fairly new engine though...

I wonder what would happen if they used a fairly ordinary semi-synth 10/40 in a 150k mile, 16 year old engine.....?

I'm still happy changing mine every 3k.... :D
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shrekky
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i can see some validity in that,as it is the oil filter change that is the most important,especially if you use fully synthetic oil ,as it doesnt break down as easy as organic oil......but having said that,this was done on what looks like a fairly new car with mobil super syn-oil.
but the truth of the matter is a majority of us drive older cars than that one with multiple previous owners,where damage could have already been done and lets face it average joe isnt going to use mobil super-syn oil...lol
so my opinion would to be still change regulary especially on the older oil burners ;) ..........you want to cut wear in you engine ?..........welll there was an advert that was actually right for once,the worst time for wear is when you start from cold,never rev it on a start and let it warm up a bit before driving.
And over 20 years of experience has taught me.......NEVER EVER BABY A CAR !!!!!.................pottering around everywhere at 40-50mph will do more damage to your car than giving it a thrashing now and again. the best thing for your car now and again...........a good long round trip at 70+mph(preferably at 80+ ;) and at least 300 miles)....you will get back and notice and considerable difference.................because you cleaned her out properly,burnt off carbon deposits,cleared standing water in your exhaust,loosened any build ups in either oil,fuel or water system.she will accelerate better ,tick over smoother,sound different ...that is until the crap starts building up again ;)
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mr_s
Jan 12 2007, 02:31 PM
I'm still happy changing mine every 3k.... :D

Same. Car is always quieter afterwards and just feels better. Also makes me feel that bit more reassured, important when running an older car.
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shrekky
Jan 12 2007, 02:39 PM
...a good long round trip at 70+mph(preferably at 80+ ;) and at least 300 miles)....you will get back and notice and considerable difference.................because you cleaned her out properly,burnt off carbon deposits,cleared standing water in your exhaust,loosened any build ups in either oil,fuel or water system.she will accelerate better ,tick over smoother,sound different ...that is until the crap starts building up again ;)

Over Christmas and New Year I drove to South West France and back, 2,000 miles round trip. On the way down, fully loaded with two passengers and boot crammed with luggage, we averaged 39 mpg doing a steady 75/80mph. Coming back - driving just as hard, if not more - we averaged 42mpg. Almost a 10% improvement. A good thrash had cleaned her out.
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Samnav2
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This leads on to a very interesting topic. I have travelled in France with both cars and motorcycles and always achieve about 10% more m.p.g in France. I always considered this was because of the long distances on quite roads. I am a member of a motorcycle club and recently there was a very involved discussion as to why this should be the case. Many quoting various differences in the fuels and the complex ways it effects performance until someone came up with the real reason. I am told that it is illegal to supply short measure in France whereas it is legal in the UK to supply up to 10% short. This is supposed to allow for temperature variations etc It makes you think
Samnav2
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Samnav2
Jan 12 2007, 06:12 PM
I am told that it is illegal to supply short measure in France whereas it is legal in the UK to supply up to 10% short. This is supposed to allow for temperature variations etc It makes you think

I didn't know that. However, it doesn't fit here. I filled up in Northern France before heading south to get a full tank of cheap French diesel... Btw, Merc 190s are still plentiful in France. But for every one 190E there are about ten 190Ds!

Sensible folk! :D
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