To do a service, you're opening the system; via the sump plug, filter housings, etc.
More frequent services = more times the system is opened = greater odds that at some point a contaminant is going to be introduced to the system.
"Over servicing runs the risk of introducing contaminates into the motor" How can clean oil contaminate a motor TonyC????
To do a service, you're opening the system; via the sump plug, filter housings, etc.
More frequent services = more times the system is opened = greater odds that at some point a contaminant is going to be introduced to the system.
Yep righto
Never heard so much bull. Sure it probably does. But walking down the street raises the risk of getting hit by a car.
You weigh up the risks in life. Servicing or over servicing done properly and I don't believe there is such a thing as over servicing, far outweighs the miniscule risk of introducing contaminates into an engine.
Oil analysis is only done to reduce costs. I don't care what any chemist says. Oil that has done say 20,000 km and analysis says it is still ok, wont be as good as new oil.
Dave.
I was asked " Is it ignorance or apathy?" I replied "I don't know and I don't care."
1983 RR gone (wish I kept it)
1996 TDI ES.
2003 TD5 HSE
1987 Isuzu County
To give an extreme example of this, when I was working in the Simpson fifty years ago, we learned from experience that once an engine started using oil, it was time to order a new engine, as it was impossible to avoid the blowing dust and sand to do daily top-ups. Remember that in those days a litre of oil a week was not considered abnormal, and normally an engine using that much oil could remain serviceable for years. We found that topping the oil up every couple of days would lead to major bearing and crankshaft wear within a few weeks.
While this was extreme, there remains a probability that every time you put oil in, you also put contaminants in, and at some stage this will outweigh the advantages of more frequent oil changes.
John
John
JDNSW
1986 110 County 3.9 diesel
1970 2a 109 2.25 petrol
It's not bull actually,Toyota and CAT will void your warranty if you over service them because you run extra risk of contaminates,oil analysis is a waste of time and money,just change the oil as per LR service requirements,you guys are over thinking it.One last thing about engine life,ask yourself why Holden and Ford six's easily see 750,000 - 1,000,000k's as taxi's yet struggle to hit 300,000 as a family car. Pat
And we have a winner. Pat
Dave.
I was asked " Is it ignorance or apathy?" I replied "I don't know and I don't care."
1983 RR gone (wish I kept it)
1996 TDI ES.
2003 TD5 HSE
1987 Isuzu County
I stuck with the LR recommendation since new and only change oil and filters every 20,000 kms. Now up to 472,000 kms and only need a top up around 15,000 kms so minimal oil consumption (mainly oil leaks) and yet to see any mechanical issues from sticking to the LR servicing intervals.
Interestingly I find at around 18,000 kms I do see the oil pressure at idle drop - not enough for the low pressure switch to activate, but enough to notice the change on the Madman EMS as I set the low pressure alarm point up a bit. Confirms the oil does degrade as we would expect.
If people want to change oil at 5,000 or 10,000 or 15,000 then go for it. Oil does come with contaminates, but the filtration system would clean the oil up. I suspect at 5,000 kms you would be disposing of some good oil though unless you are only doing low kms a year and lots of short trips or operating in extreme conditions.
Have been considering if I should plan some additional maintenance once I get to 500,000 kms - such as a new oil pump (already replaced the water pump proactively).
And I am sure I read somewhere you should replace the Turbo with a VNT upgrade at 500,000. (-;
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