Pelican Parts
Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help



Go Back   Pelican Parts Forums > Porsche Forums > Porsche 911 Technical Forum


Reply
 
LinkBack Thread Tools Rate Thread
Author
Thread Post New Thread    Reply
Registered User
 
Spumato's Avatar
 
Join Date: Jan 2013
Location: OKC, OK
Posts: 224
Garage
Send a message via AIM to Spumato
Do short drives degrade engine performance?

All...

I am curious if frequent short trips can affect CIS performance.

Drives I am referring to would be less than 25 miles round trip, include spirited driving, but limit the engine temperature to sub 180 degrees in temp.

What are your feelings or reservations?
And if this does impact overall performance, what then is my remedy?

Thanks

__________________
Ryan Russell
(405) 264-6288
Old 08-11-2016, 08:39 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #1 (permalink)
Registered
 
DerkPerk's Avatar
 
Join Date: Jul 2015
Location: Twin Cities
Posts: 748
I try to never short trip any of my vehicles. More to the fact of getting oil up to temp to burn off any moisture. No comment on CIS performance.

Sent from my XT1565 using Tapatalk
Old 08-11-2016, 08:45 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #2 (permalink)
Under the radar
 
Trackrash's Avatar
 
Join Date: May 2007
Location: Fortuna, CA. On the Lost Coast near the Emerald Triangle
Posts: 7,129
Garage
I agree on having the motor warmed up during a drive. It is very hard on motors to only run them short distances where the oil does not get up to temp.

For many years I only had two cars. My 911 and a VW Beetle. For trips to the store and beach I drove the bug. To work, about 20 miles each way, I drove the 911.

That said, you should be able to get your car warmed up in 5 or so miles. (unless it's freezing weather)

It is said that 90 % of your engine wear occurs during warmup. I have been told you should not rev your motor when the oil is cold above 4000 rpm.
__________________
Gordon
___________________________________
'71 911 Coupe 3,0L outlawed
#56 PCA Redwood Region, GGR, NASA, Speed SF
Trackrash's Garage :: My Garage
Old 08-11-2016, 08:59 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #3 (permalink)
Registered
 
DerkPerk's Avatar
 
Join Date: Jul 2015
Location: Twin Cities
Posts: 748
I believe the manual says stay below 3k until the temp gauge comes off the bottom.

Sent from my XT1565 using Tapatalk
Old 08-11-2016, 12:11 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #4 (permalink)
Registered
 
billh1963's Avatar
 
Join Date: Sep 2002
Location: South Carolina
Posts: 1,531
Garage
Until your oil gets warm you won't boil off any water condensation that forms. Every weekend I take my cars on a 50 mile "test loop" to get everything heated up...plus, it's fun!
Old 08-11-2016, 12:47 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #5 (permalink)
Registered
 
Join Date: Jun 2003
Location: Fresno, CA
Posts: 7,778
Who wants to drive a 911 for a short trip? If your not having fun driving it, your not doing it right.
Old 08-11-2016, 02:55 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #6 (permalink)
 
Registered
 
T77911S's Avatar
 
Join Date: Oct 2006
Location: MYR S.C.
Posts: 17,321
its also bad for mufflers/exhaust.
condensation does not boil off and will rust them from the inside out.
true for any car
__________________
86 930 94kmiles [__] RUNNING:[__] NOT RUNNING: ____77 911S widebody: SOLD
88 BMW 325is 200K+ SOLD
03 BMW 330CI 220K:: [__] RUNNING: [__] NOT RUNNING:
01 suburban 330K:: [__] RUNNING: [__] NOT RUNNING:
RACE CAR:: sold
Old 08-12-2016, 03:27 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #7 (permalink)
Registered
 
SoCalSK8r's Avatar
 
Join Date: Feb 2012
Location: Ventura County, CA
Posts: 874
Well short runs are better than not driving it at all. Don't sweat the details, you could die tomorrow ...just drive it when u want.


Sent from my iPhone using Tapatalk
__________________
‘84 Carrera, heavily modded
Please follow me @chopped_up_fitness
Old 08-12-2016, 09:37 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #8 (permalink)
Reiver
 
Reiver's Avatar
 
Join Date: Nov 2011
Posts: 57,385
Quote:
Originally Posted by SoCalSK8r View Post
Well short runs are better than not driving it at all. Don't sweat the details, you could die tomorrow ...just drive it when u want.


Sent from my iPhone using Tapatalk
Lol, he's right.
__________________
De Oppresso Liber
Strength and Honor 5th Legion
Old 08-12-2016, 11:29 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #9 (permalink)
Registered
 
sugarwood's Avatar
 
Join Date: Apr 2014
Posts: 9,011
Garage
I don't get the logic. You need to get to full temp to "burn off condensation"
Well, if you never start the car, you also will not burn off condensation either.
__________________
1986 Bosch Icon Wipers coupe.
Old 08-12-2016, 12:00 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #10 (permalink)
Registered
 
wayner's Avatar
 
Join Date: Apr 2007
Location: I live on the road, I just stay here sometimes...
Posts: 7,104
Oil temp is an indicator of engine component temps.

Metal expands when it is hot.

Engines run loose until they are up to temp and parts are not running at optimum tolerance, therefore don't rev the snot out of them yet.
(But drive them)

Also, a heat differential causes the air to release its moisture. More heat will chase moisture away.
__________________
73 RSR replica (soon for sale)
SOLD - 928 5 speed with phone dials and Pasha seats
SOLD - 914 wide body hot rod
My 73RSR build http://forums.pelicanparts.com/porsche-911-technical-forum/893954-saving-73-crusher-again.html

Last edited by wayner; 08-12-2016 at 12:21 PM.. Reason: But drive them
Old 08-12-2016, 12:05 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #11 (permalink)
Mighty Meatlocker Turbo
 
Rawknees'Turbo's Avatar
 
Join Date: Apr 2016
Location: North TexASS
Posts: 18,533
Quote:
Originally Posted by Spumato View Post
I am curious if frequent short trips can affect CIS performance.
No.


Quote:
Originally Posted by sugarwood View Post
I don't get the logic. You need to get to full temp to "burn off condensation"
Well, if you never start the car, you also will not burn off condensation either.
The combustion process pulls water out of the air, as does the gradual heating of the oil and metallic engine components.
Old 08-12-2016, 12:08 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #12 (permalink)
 
Registered
 
Join Date: Mar 2014
Location: toronto
Posts: 738
Garage
Drive it short. Drive it long. Drive it medium.
Drive maintain rinse and repeat

Old 08-12-2016, 12:10 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #13 (permalink)
Reply


 


All times are GMT -8. The time now is 06:26 AM.


 
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2025, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2025 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page
 

DTO Garage Plus vBulletin Plugins by Drive Thru Online, Inc.