I drove 330kms in my GT3 last year.

One can only hope that was all accumulated in a few lapping days?

I was paranoid enough about this that I sent in a sample to black labs after 3 years from my rarely driven s2000. The test results were flawless and they included this in the write up:

You can safely jettison the idea of calendar based oil changes. Modern engines are sealed up tight and not susceptible to issues like corrosion or oil breaking down due to moisture and other outside contaminants getting in over time. Solids from heat/blow-by/use(insolubles) and wear metals are the things that must be removed during oil changes and those only build up while the engine is running. Here wear metals are low next to universal averages.

nah, runs to foody mart.

I was paranoid enough about this that I sent in a sample to black labs after 3 years from my rarely driven s2000. The test results were flawless and they included this in the write up:

You can safely jettison the idea of calendar based oil changes. Modern engines are sealed up tight and not susceptible to issues like corrosion or oil breaking down due to moisture and other outside contaminants getting in over time. Solids from heat/blow-by/use(insolubles) and wear metals are the things that must be removed during oil changes and those only build up while the engine is running. Here wear metals are low next to universal averages.

Probably just T&T. He lives closer to those.

For all cars today, pretty much this.

Did u use wearcheck in Burlington? We use them.

You likely always bring that car up to temperature though. One of our cars does a lot of short trips to daycare so that would look different. I've sent a sample off to Blackstone they said run to 15 months on my ML350. So, those oil tests can save money if used properly.