inkatouring

After reading the work up on p-car.com, I'm going to jump in some DIY for my cab this coming weekend, starting with an oil change. While ordering the parts from Pelican, they asked if I was going to do both filters and I said sure. The guy on the phone (who undoubtedly knows more than I do about 993s) said that he only changes the engine filter at every other oil change. Anyone else in that boat or do I need to change both. As way of background, the car uses Mobile 1 and was changed 5k miles ago. All my cars run on synthetic (various brands, just to complicate things) and I change it every 5 to 7.5k, not the allegedly ok factory approved 15k. My thought is that with that "extra" change in there, the one filter change on the "off" change might be enough. Thoughts?

Also, any tips other than those in the p-car write up linked above?

jnx

It's entirely up to you, but every other time on the filter is ok. I do them both, every time but I'm kinda crazy like that.

Only tip I can offer is that I use a 5-gallon bucket to catch the oil. Good luck.

95C4VanIsle

I change my oil every year (approximately 5,000 miles) and always change both filters. Kind of a "while I'm in there" job.

The website below in my signature has lots of DIY projects.

Good luck with the oil change!

bart1

It's not too bad - just allow plenty of time. I found it easier to take the rocker all the way off and remove both of the heat exchanger boxes (the little R shaped pieces, whatever you call them).

Black993

Just make sure you take out the drain plug and not the other "I took this bolt out and all this other stuff flew out" bolt.

Its not hard, just time consuming the first time. Enjoy it, I love changing the oil on mine

matt777

I've only done one change and fully agree with taking the rocker off. Once you have a look at where the drain plug is it will be obvious as to why. I didn't see a need to undo the return line but did remove the orange duct hose.

Bruce SEA 993

Does anyone have a "foolproof" way of identifying this bolt:

Thanks!

tbil

I haven't found it necessary to remove the return line either. But getting the entire rocker cover off seems manditory to enable getting a big enough drain pan in there. Not much extra work or $ to change both filters, like the idea of getting one of the dirtiest pints of oil out, though it is trapped in the filter...

matt777

Just locate the gearbox drain plug first.

cgfen

agreed, that's the oil pump bypass? pressure spring. not fun getting it back in place...
what else?
1. change both filters every time, why not?
2. change the two o rings on the metal tube that is ~ 1 1/4" in diameter.
3. don't forget that there is oil in that tube until you drain the sump...
4. use one new crush washer on the drain bolt.
5. pour the fresh oil in slowly, after about 9 quarts of fill, you'll make a mess if you get too hasty with the last 2.345 Q.

have fun

craig

cgfen

mmmmm do it wrong once and you'll never make that mistake again.
the correct bolt mounts tranversely into the case.
the WRONG bolt mounts up into the case and looks like the correct one, it's not, trust me.

craig

blackcat

OT: Inka, I saw this in your sig as I was scrolling down and my brain put some of the letters and numbers and things in a different order (skipped a couple as well)

"...
95 993 Cab (DD)
08 BMW 328it (wife's)
..."

(probably because my mind has been in the gutter far too long)...

Bruce SEA 993

That's what I have heard!

Thanks for the ID on the bolt!

95C4VanIsle

Another hint I got from MikeJ was when you go to start the car after the new oil has been added is to pull the DME when starting the engine until the oil pressure needle starts to move, Reinstall DME and fire up the engine.

RallyJon

6) get a 20' x 20' dropcloth.
7) cut a small hole in it for your head.
8) wrap your head in paper towels.

Would have been useful advice for my first oil change.