wrote in message
...
On Mon, 17 Jun 2019 04:48:16 +1000, "Rod Speed"
wrote:



"Meanie" wrote in message
...
On 6/16/2019 1:28 PM, rbowman wrote:
On 06/16/2019 07:41 AM, Meanie wrote:
Today's engines are well designed to drive farther than the 3000 mile
change, especially if using synthetic blends. Though, you didn't
provide
vehicle info, I'll guess it as within 10 years old and the 5000 mile
change will not hurt it, thus, the 3000 surely won't hurt either.
You're
just spending more money. It is recommended to follow the
manufacturers
guide in the manual.

I get the maintenance light every 5000 miles and change the oil then. I
was on vacation so I'm over this time but it will live.

It's a different animal but when a company I worked for went to Detroit
60 diesels they also started to do oil analysis. The protocol had been
12000 miles for oil and filters but it was lengthened to 20000. The
shop
manager said they still weren't seeing significant degradation at 20000
but they needed to set some figure.


https://www.bobistheoilguy.com/engine-oil-analysis/

Some airport FBO's can send a sample to a lab or you can get a kit from
some places:

https://www.edmunds.com/car-maintena...lling-you.html

I've heard/read similar stories about engine mileage being extended to
10,000 or more without issues.

In fact 10K is the manufacturer recommendation with my Hyundai Getz.


12,000 km / 7500 miles / 6 months per my Kia manual.
I usually go ~ 9000 km. ... it's time to add and the oil is
looking dirty.

I didn't bother for 30K

With my several old Taurus 3 litre cars - I'd change the oil
a little earlier than the manual recommendation ~ 7000 km
and it would still look new - not darkened.

With my 73 Golf, I never bothered to change it at all in 45 years.