Oil change at trusted mechanic vs. Dealership

[mikesz]

I do my own oil changes not difficult. Its a car not a sacred cow. I buy the recommended Mobil 1 at walmart buy 2 5 quart containers and I change it in my driveway. $340 is crazy and dont think the dealers know everything. I could tell you stories.

[Twin headlight Ernie]

My first job right out of tech school was at a dealership that carried Porsche.
The way I change my own oil to to put it on the lift right after a ride. Pull the plug and filter and let it drain overnight. Inspect the filter pleats for contamination. The next day add a new quality filter and 9 quarts oil. 9 quarts is spot on on my 986S. You'd be surprised how much extra oil will drip out by leaving it overnight vs 5 to 10 minutes. Most lube racks do not let it drip long enough. Time is money.

[Robert986]

When I change oil I weigh the old oil and put in the exact same amount of oil. Easy peasy..

[Frodo]

Originally Posted by Robert986

When I change oil I weigh the old oil and put in the exact same amount of oil. Easy peasy..

Not being critical, but I would think that would be kind of a headache. And probably kind of messy. No? What container(s) do you weigh it in?

[pilot4fn]

Originally Posted by Frodo

Not being critical, but I would think that would be kind of a headache. And probably kind of messy. No? What container(s) do you weigh it in?

Might be that he meaned 'measure the oil'...

[Robert986]

Originally Posted by Frodo

Not being critical, but I would think that would be kind of a headache. And probably kind of messy. No? What container(s) do you weigh it in?

No actually it´s very very easy!

I use this container: https://www.biltema.se/bil---mc/mc/verkstadsutrustning/verktyg/spilloljedunk-bilmc-2000024001

First I weigh myself on a bathroom scale, holding the empty container. I tap the oil straight from the car into the container, then I stand on the bathroom scale again holding the full container.

I now have the weight of the old oil, I calculate the volume in litres and fill up the car with the exact amout.

Super easy!

:dance:

[pilut2]

Originally Posted by Robert986

First I weigh myself on a bathroom scale, holding the empty container. I tap the oil straight from the car into the container, then I stand on the bathroom scale again holding the full container.

I now have the weight of the old oil, I calculate the volume in litres and fill up the car with the exact amout.

Super easy!

That is an extra step that I would never have considered- you must be an engineer.
I initially add 8 litres of oil and then drive the car. The following morning I check the dipstick and top it off if necessary- it usually takes a mouthful or so- (I'm not an engineer... LOL!).

[maytag]

Originally Posted by Robert986

No actually it´s very very easy!

I use this container: https://www.biltema.se/bil---mc/mc/verkstadsutrustning/verktyg/spilloljedunk-bilmc-2000024001

First I weigh myself on a bathroom scale, holding the empty container. I tap the oil straight from the car into the container, then I stand on the bathroom scale again holding the full container.

I now have the weight of the old oil, I calculate the volume in litres and fill up the car with the exact amout.

Super easy!

:dance:

I feel like I'm being punked here. If you're going to convert to volume anyway, why not simply measure the volume that you removed?

Sent from my SM-G970U using Tapatalk

[Frodo]

Originally Posted by Robert986

No actually it´s very very easy!

I use this container: https://www.biltema.se/bil---mc/mc/verkstadsutrustning/verktyg/spilloljedunk-bilmc-2000024001

First I weigh myself on a bathroom scale, holding the empty container. I tap the oil straight from the car into the container, then I stand on the bathroom scale again holding the full container.

I now have the weight of the old oil, I calculate the volume in litres and fill up the car with the exact amout.

Super easy!

:dance:

I guess that works (though I see maytag's point).

I just use the 5 qt containers (two, of course). Pour one in, right off the bat. I’ve got a plastic container with a snap-on lid that originally contained Hot and Sour soup from a local Chinese takeout place. Ran it through the dishwasher and now keep it in the garage, lid on, with my oil change stuff. It holds exactly 1 qt. I’ll pour clean oil from the 2nd 5-qt jug into it til it’s full, then pour nearly all of the rest into the car. Start her up, run it for a minute (looking underneath for possible leaks), then check the level. Add a ‘glug’ or two as needed. Check again. Done.

While I still prefer judicious filling and use of the dipstick, I do salute your devotion to precision!

[piper6909]

Originally Posted by Robert986

When I change oil I weigh the old oil and put in the exact same amount of oil. Easy peasy..

You can't go by weight!! Old, contaminated oil doesn't weigh the same as fresh oil!

You can't go by volume, either for the same reason! WE'RE ALL F%CKED! AHHHHH!!!