Free... zoo... Two words I like. :):)

Mike:

The oil in the Boxster doesn't discolor much only has 57,000 miles on it.
The Honda CRV oil discolors and starts to look dark before the change it has 162,000 on it.
The Truck has 114,000 and is a 1993 with a 460Ci in it.
The oil begins to discolor rather quickly.

Each engine is different.
Each vehicle is used differently.
Each one has different needs.
That is why I let my cars tell me what they need and when they need it to keep running right.

And that is the least expensive way to do it too. The car will tell you when something isn't right. Your butt will also tell you when things dont feel right but that takes some time to get the feel for.

I see... that makes sense.
You can hear your cars telling you stuff?
Hmmm... so... you are kinda... a car whisperer? ;)

My 2001 base has 133k+ miles. The oil is usually very dark. I just changed the oil with the AOS job. I will keep a monthly record this time to see if I can see the discolor in progress. Thank you.

"Your butt will also tell you when things dont feel right..."

Now you just sound like Niki Lauda. :):)

I figure my miles per gallon with every fill-up.
I have done that for 50+ years.
If my gas mileage is down...then why is it down?????
Is it fall a or winter instead of spring or summer???
Engine takes longer to to warm up when it's colder.
so it will stay on open loop longer (rich mixture).

I don't text or talk on the phone or what ever when I am driving.
I drive my car when I am driving.;)

See, Hear, feel, smell, taste your car when you drive it.

Was wondering if someone would pick up on that or not.

My butt isn't that sensitive, but I can feel if a tire is too low or if I am feeling weird vibrations, it all comes up through the seats.

So....should I just drive it, since it seems to be running great, or should I go for the "recommended" tune up now that the car has 91,000?

I tend to be leaning towards...."if it ain't broke, don't fix it" mentality.

At 91,000 miles it is time for some maintenance to be done.
Everything your mechanic has suggested is a maintenance item.
Even thou the car seems to run great it is time to do some general maintenance.

You would not run on a bald tires just because they still held air.

Either take the car in and have the work done or do it yourself.

All the items you listed are simple DIY jobs and on a 91,000 mile vehicle should be done. You should also do the brake fluid if it has never been replaced as well as trans fluid, auto or manual. These are really basic things that ensure the car runs properly, shifts properly, brakes properly and will help prevent worse things from arising down the road due to neglect.

The best part of DIY, other than saving money, is you get to really learn about your car and see things you would never see if someone else does it.

I’ve done all the jobs listed and more on my car and wouldn’t hesitate to do it again.

One last thing, I change my oil every 3000 miles or once a year regardless of colour. Fresh oil and filter is the cheapest and nicest thing you can do to the inside of your engine.

Very true.

Doing a tiptronic fluid change is not something that is DIY unless you have a lift, temp sensor & pump to get the fluid in. It isn't just a drain & fill. It is also not meant to be designed to be changed by Porsche.

It most certainly is a DIY job. Lift (jack/stands), temp sensor ($<$30), and a pump? Those items should be in every toolbox. It is a drain and fill and, if you're swapping out the filter, not a huge deal. For/By whom was it designed to be changed? Anyhow...

I did mine last year. No big deal if perfectly, by the "book", done. That said...

My Tip failed about 1,000 miles after my fluid/filter change. Regular twisty driving and the seal blew. Had the Tip rebuilt.

Now... <80 miles after I picked it up from the shop (75 miles from my home) it failed on me 3 miles from my home. Seal blew, again.

I could suspect that it was MY fluid and filter change that contributed to the original failure... but it also failed post rebuild. So... I suspect that it wasn't anything associated with my fluid/filter swap... it was just something that was destined to happen.

All that said... in spite of the $29 and change per liter (10 liters complete fill) for the Pentosin 1 (my mechanics charge), and if I had to do it all over again... I'd just take it to the shop. I know I didn't make any mistakes when I swapped the fluid/filter... but wondering if I was just a hair short, or over, on the fluid causes me to wonder if that was the $4,200 **************** up. :cheers:

where in NJ are you? I can change your plugs for your at your house if you're close by

Hi Quadcammer,

I am in Demarest. It's about 30~40 mins from Clifton.
Thank you for the offer. However, I want to change them myself. You are always welcome to come on over and 'supervise' while drinking my beer. :):cheers:

Yes - I would for any +20 year old car (that's just me)

I only change ignition coils if needed. at 70K one of my coils had hairline crack.