how many miles before first oil change

[bluesubie]

Oil color doesn't tell you whether or not the oil needs to be changed.

-Dennis

[sierra]

Originally Posted by bluesubie

Oil color doesn't tell you whether or not the oil needs to be changed.

-Dennis

Without paying someone to analyse the oil the colour, feel and smell are what we have to go by. If it's black I doubt an analysis will say it's good to leave and I certainly wouldn't leave it in my engine.

[wrussi]

1000 miles for my first one with 5w20 non syn and i just did my 5000 miles full syn 5w20

[sierra]

Originally Posted by wrussi

1000 miles for my first one with 5w20 non syn and i just did my 5000 miles full syn 5w20

They say that it needs a fully synthetic oil to be able to cope with the high oil temperatures in these motors.
If that's the case then 4000 miles using mineral oil might not have been the right thing to do?

[bluesubie]

Originally Posted by sierra

Without paying someone to analyse the oil the colour, feel and smell are what we have to go by. If it's black I doubt an analysis will say it's good to leave and I certainly wouldn't leave it in my engine.

Just take a look around at the uoa's on this site. If it is black, that could mean that the oil is doing its job holding the contaminants in suspension. That could happen in as little as 2,000 miles on an oil that still has a strong TBN to handle another 5,000 miles. There's no sense in speculating when it's very easy to obtain data or spend $25 or a used oil analysis including TBN.

-Dennis

[Suberman]

Originally Posted by sierra

Without paying someone to analyse the oil the colour, feel and smell are what we have to go by. If it's black I doubt an analysis will say it's good to leave and I certainly wouldn't leave it in my engine.

Colour is not relevant. Heat darkens oil but has no effect on service life.

Oil is changed long before it wears out because it gets contaminated by water from combustion causing additives to break down. The filter needs changing long before the oil is worn out.

Once every 6 months or 5,000 miles is VERY conservative. Most engines spec once per year or 10,000 miles and my new Jaguar is once per year or 15,000 miles.

Short trip arctic driving or long bouts of driving in the summer outback may warrant more frequent changes but that's due to increased risk of contamination, the oil will be fine.

[DoomsdayJesus]

Originally Posted by bkblitzed

I did mine around 1500 and I had flakes and the oil was pitch black. So I would do it soon

If you're worried about debris in your oil just swap filters halfway between oil changes. It's too easy on this car. There's no need to change it early.

[bkblitzed]

Originally Posted by DoomsdayJesus

If you're worried about debris in your oil just swap filters halfway between oil changes. It's too easy on this car. There's no need to change it early.

maybe to some but to me there is. Just depends on what you do with the car. I change oils every 3-4k miles.

[SirBrass]

Originally Posted by Dr. BRZ

its a boxer, so oil change every 7500 miles.

Depends on where you are. Here in the desert, the dryness and temps mean oil changes every 3750 to 5000 miles on the 0w-20 Subaru Synthetic oil.

[993Fan]

Originally Posted by Suberman

Once every 6 months or 5,000 miles is VERY conservative. Most engines spec once per year or 10,000 miles and my new Jaguar is once per year or 15,000 miles.

Some 911 models had a 20K interval. Of course, they also had a lot more oil.

[wrussi]

Originally Posted by sierra

They say that it needs a fully synthetic oil to be able to cope with the high oil temperatures in these motors.
If that's the case then 4000 miles using mineral oil might not have been the right thing to do?

factory oil is non syn and trust me the one that they put at the scion service center wont be synthetic either unless you ask and pay extra for it.

[bluesubie]

Originally Posted by 993Fan

Some 911 models had a 20K interval. Of course, they also had a lot more oil.

And you can be certain that there is currently no 0W-20 or even XW-30 that meets Porsche A30 specs.

Originally Posted by wrussi

factory oil is non syn and trust me the one that they put at the scion service center wont be synthetic either unless you ask and pay extra for it.

The factory oil is indeed synthetic and is supplied by Idemitsu. You can contact Idemitsu Lubricants of America Corporation to verify this.

Again while oil should sometimes be changed at the severe service interval of 3,750 miles, unless you are doing a used oil analysis some of the intervals in this thread are complete speculation.

Stop the speculation and perform a uoa with TBN.
http://www.ft86club.com/forums/showthread.php?t=13286

-Dennis

[SirBrass]

Originally Posted by wrussi

factory oil is non syn and trust me the one that they put at the scion service center wont be synthetic either unless you ask and pay extra for it.

Stock subaru oil is indeed synthetic. And it's essentially re-branded mobile 1.

Sent from my SCH-I535 using Tapatalk

[sierra]

Originally Posted by bluesubie

Just take a look around at the uoa's on this site. If it is black, that could mean that the oil is doing its job holding the contaminants in suspension. That could happen in as little as 2,000 miles on an oil that still has a strong TBN to handle another 5,000 miles. There's no sense in speculating when it's very easy to obtain data or spend $25 or a used oil analysis including TBN. -Dennis

Why not spend the money on an oil change instead?