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Old 08-29-2019, 04:40 PM   #771
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What is the temp range you see? I see mostly 95-105C and once I noticed 135C.

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Originally Posted by HappyHapgood View Post
Interesting. Why do you think sport mode lowers the oil temperature? I love towing with my 2016 Cayenne Diesel, but the oil temps get a little high on long grades in warm weather.
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Old 08-31-2019, 10:06 AM   #772
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Cayenne Oil Temp

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Originally Posted by bono View Post
What is the temp range you see? I see mostly 95-105C and once I noticed 135C.
Also responding to Mr. Merk's question:

I have seen oil temps as high as 235-240 deg F in the Colorado mountains, driving too fast. I like 200-220 F. Having come from an air cooled background, I was concerned at first. Thinking about modern synthetic oils, I have convinced myself not to worry about it. Yes, I would worry about 135C (~275 deg F).

Also, I have seen a 20 deg F drop in oil temps by switching to sport mode. (I went back and looked at my dash pictures to note it was 20 and not 15 decrease).

Why do I think the temperature decreases with 'Sport' engaged? I don't know since I am not in the business any more, and technical information is nearly impossible to find.

My conjecture? Since my 2016 S does have active flaps for the radiator opening, I can't help wonder if Porsche also put in controls to regulate water flow to the oil cooler (my pure speculation). At any rate, putting it in 'Sport' changes something significant.

Have fun out there (and push that 'Sport' button!)
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Old 09-09-2019, 07:51 AM   #773
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Ended up spending Labor Day weekend up in the Ozark mountains. I pulled the Airstream without sport mode or cruise control for about 90 minutes each way, never exceeding 60-65mph on two lane, mostly twisty highway and got about 10mpg until I got to the one last steep mountain that the campground sat on top of. That climb dropped me back down to 8.5mpg.

It was a pretty good shake down of the camper. Learned what we liked and didn't like compared to our Keystone that we renovated last year. The tiny bathroom and the convection oven are the biggest negatives for me.

We took the wife's Carrera 4S and I got a couple hours of GOOD driving in one day.

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Old 09-09-2019, 08:05 AM   #774
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Nice trip! Where did you camp in the Ozarks? Taking the 911 was brilliant (I hope to finish my '71 eventually...). Someday I hope we can have an in-depth conversation about our Porsches.
Kirk
PS: Our Cayenne 'S' also dips below 10MPG, a little more than expected, but not a real concern..
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Old 09-09-2019, 11:29 AM   #775
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Originally Posted by Sweendk View Post
Nice trip! Where did you camp in the Ozarks? Taking the 911 was brilliant (I hope to finish my '71 eventually...). Someday I hope we can have an in-depth conversation about our Porsches.
Kirk
PS: Our Cayenne 'S' also dips below 10MPG, a little more than expected, but not a real concern..
We stayed at the Buffalo Outdoor Center RV park. Its a nice spot, very open.

You'll need to bring the '71 down for our Drive OZ rallye, first one is the end of next month. Also, Luftgekuhlt in LA each Spring is not to be missed! We've driven out there twice in my '88 Carrera.

Back on topic: I was pretty disappointed that we only got 8.5mpg on the 4600 mile round-trip to Banff. Now that I think about it, we were in sports mode, with the cruise set much of the time at 70+mph. Every guy I talk to with a gasser 1/2 or 3/4 ton is only get 8mpg going 60mph.

On this trip we had a site neighbor with a Touareg TDI pulling a giant tear-drop. While we were packing up nice retired Veteran with a Tundra came and knocked on our door. He couldn't believe we were pulling these trailers with "such a little car."
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Old 09-10-2019, 01:38 PM   #776
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Sounds like a fun trip Merk!


Small world, as I was over in the not far away Cookson Hills & Sallisaw OK area for Labor Day weekend, also in past years we've camped further up the river at Buffalo River NP a few times in our VW Westfalia before Labor Day on our trip to Sallisaw, when my in-laws were still around & living in Little Rock. Love that section of the Ozarks.



When you come out to SoCal for the Luftgekuhlt in LA, check the PCA Zone 8 website for other events & gatherings in the area during your stay, since we have 8 Regions from Santa Barbara south to the border, & they all have 1-2+ things every week.



Back to the subject at hand ....



As for mpg, you'll get far better mpg at lower speeds 55-65, than 70+ - no matter the TV - but I'm surprised to see 8.5 - 10 mpg on your Turbo, as there were other CT owners on here who reported 12-13-ish mpg in earlier posts.



But then, the Turbos & GTSs & gas V6s tend to get a bit lower mpg when hitched, than the normally aspirated V8 CS - while the V6 will be a bit better when not towing. The CS V8s seem to be reporting back 13-15 mpg when towing.





So I'm surprised that Sweendk is also reporting 10 mpg & less in their CS.


Sweendk - is this CS mpg a matter of terrain &/or higher speeds, or what?



I may be looking at a `13 CS this weekend, so would like to know whether the gas normally aspirated V8 is really getting 13-15 mpg running at say 65-ish mpg.



I've been thinking that the n.a. V8 CS was the sweet spot for towing mpg wise, & that's what we're mostly going to use ours for.



Also OT for you Sweendk - I feel your pain on delays in getting my own `73 914-2.0 "914-S" resto going again & done! Just too many other things going on, including a resto/renovation of our 1921 Craftsman home literally in the way of getting it to the shop!



There are some Tulsa & Midwest 914ers who do a Talimena Run in 914s that I'd love to do in mine one day. From what I understand, past runs have had as many as 50 914s from all over.



I'm sure that they'd allow a few "Tail-draggers" tag along with the "Middies" - if it's of interest to either of you.



Cheers!
Tom
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Old 09-11-2019, 06:26 AM   #777
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I think having a 957 contributes to the lower MPG having less gears. I know the 958 has the same engine but the different transmission reduces the 0-60 by .5 sec iirc. I'm sure it affects the fuel mileage as well.
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