Welcome to 911UK
The only place for Porsche, 911uk is the definitive enthusiast and resource site for the Porsche 911.
Registration is fast, simple and absolutely free, so join up today for full access to the site and benefit from latest member offers.

Porsche Classifieds
Porsche Buyers Guides
Sell Your Porsche on 911uk
Create a Free Classified Advert
Search Ads
Classified Adverts FAQ
Trade Classified Information
Buyer & Seller Fraud Protection
Consumer Rights Act
Pre Purchase Inspection (PPI)
Porsche Car Sourcing
Porsche Cars Wanted
Official Porsche Centre Reviews
Porsche 911
991 : 2011- 17
997 : 2004- 77
996 : 1997-2005 48
993 : 1993-1998 6
964 : 1989-1993 5
Carrera 3.2 : 1983-1989 0
Carrera SC : 1977-1983 1
930 Turbo : 1975-1989 0
Early 911 : 1964-1977 0
Porsche Other Models
Classic : 1950-1965 0
Boxster : 1997- 15
Cayman : 2005- 17
Cayenne : 2003- 7
Macan : 2014- 3
Panamera : 2009- 1
912-914-924-928-944-968 3
959 - CarreraGT - RaceCar 1
Car Parts For Sale & Wanted
Other Items For Sale & Wanted
Wheels Tyres For Sale & Wanted
Number Plates For Sale Wanted

Porsche Services
Porsche Body Shop Repair
Paint Protection & Wrapping
Porsche Classic Insurance
Porsche Classic Parts
Porsche Classic Restoration
Porsche Design Collection
Porsche Engine Gearbox Rebuild
Porsche Heritage & History
Porsche News
Porsche Picture Gallery
Win a New Porsche 911

Porsche Parts
Body Parts, Body Styling
Brakes, Clearance
Electrical, Exhausts
Engine Cooling, Engine Electrical
Engine Rebuild, Heating Cooling
Interior Incar, Lighting
Rubber Seals, Service Parts
Steering, Suspension
Transmission, Workshop Tools
Early 911, 911 - 930, 928 - 968
964 - 993, 996 - 997, Boxster
Cayman, Cayenne, Panamera

Porsche Model Range
911 [991] 2011-Current
Porsche 911 [991]
911 [997] 2004-Current
Porsche 911 [997]
911 [GT] GT1-GT2-GT3
Porsche 911 [GT]
911 [996] 1997-2005
Porsche 911 [996]
911 [993] 1993-1998
Porsche 911 [993]
911 [RS] RS-RSR
Porsche 911 [RS]
911 [964] 1989-1993
Porsche 911 [964]
911 3.2 1983-1989
Porsche 911 3.2 Carrera
911 SC 1977-1983
Porsche 911 SC
911 [Early] 1964-1977
Porsche 911 [Early]
Boxster & Cayman
Porsche Boxster & Cayman
Cayenne & Panamera
Porsche Cayenne & Panamera

911uk Site Partners

Post new topic   Reply to topic
Author Message

Joined: 21 Jan 2009
Posts: 4514
Location: London

PostPosted: Sun Jun 15, 2014 5:24 pm    Post subject: Reply with quote

I've blown up 5 engines in my time and not one of them went bang because of the type of oil used ..... rather, not having enough. Go figure.

in summary: just use a few litres of 'crisp and dry', it'll be fine. Failing that, what is says in the handbook. Thumb
993 3.8 clubsport
Ferrari F12 Berlinetta
Golf R
View user's profile Send private message Visit poster's website Yahoo Messenger
Paul Ricard

Joined: 19 Mar 2014
Posts: 3481
Location: Harrogate

PostPosted: Sun Jun 15, 2014 8:32 pm    Post subject: Reply with quote

quattrosteph wrote:
Double ester base oil for track use.
Opeoil or the oilman
Change oil+filter often.
You need to pick the right oil as it can affect oil pressure and put some stress on the oil pump.
Trackday is not racing so you need to find an oil suitable for your road use too.

Stress the oil pump?

What a old of old tosh.
2006 Cayman S PCCB's
View user's profile Send private message

Joined: 14 Apr 2012
Posts: 1422
Location: Buckinghamshire

PostPosted: Fri Jun 20, 2014 9:52 pm    Post subject: Reply with quote

Oil pump will work harder to push higher viscosity oil . Logic.
An oil with the right viscosity will travel fast everywhere on start up.
The biggest wear on an engine is during the first few secondes after start up so you don't want something too thick for road/fast road use.......
Using much higher viscosity oil can have negative effects : power will go down a little bit, can cause problems with hydraulic lifters, engine temp tend to go up.
These days we have a large choice of top quality oil .
Higher in grade doesn't mean better for a road car anyway.
For pure racing cars it is different.
Porsche 996 Turbo S.
Audi RS4 B7 V8 4.2 Sold
Audi RS4 B5 Bi-turbo MRC tuned 510BHP Sold
Audi S4 B6 V8 4.2 Sold
View user's profile Send private message
Paul Ricard

Joined: 02 Feb 2008
Posts: 3309
Location: South Bucks

2004 Porsche 996 GT3 Mk2

PostPosted: Fri Jun 20, 2014 11:12 pm    Post subject: Reply with quote

On the face of it your contention of increased stress has some merit, however the oil pump is never that stressed because it cannot pump at more than 5 bar due to the pressure relief valve. The contention that thinner oil somehow travels faster is nonsense - a fluid in a given size bore when already primed and pumped at the same rate doesn't flow faster or slower depending on viscosity. It also can't negatively impact hydraulic lifters in either operation or lifespan. What a less viscous oil does do is leave a thinner coating of oil as it settles in a cooling engine & that can mean a greater likelihood that the oil film can break down before it is replenished by the pump. My ECU doesn't turn on the coil packs until it sees 2 bar of oil pressure for precisely this reason.

2004 GT3 CS in Atlas Grey with too many mods to list!
1995 993 GT2 recreation in Polar Silver
2010 GT3 CS in Riviera Blue Smile
1978 Carrera SC Barn Find in Red (restoration project)
View user's profile Send private message
Stuart Mackay

Joined: 29 Apr 2013
Posts: 233
Location: Swaffham, Norfolk and Good

PostPosted: Fri Nov 25, 2016 7:41 pm    Post subject: Reply with quote

http://www.eurocarparts.com/ Black Friday promo code OIL50
Just bought 3 x 5 litres Mobil 1 10-60 for £110 delivered for GT3 and Westy oil change over the winter thumbsup
2007 Speed Yellow 997 Carrera GT3 CS
2002 Guards Red Aerokit 996.2 C4S Cabriolet
2000 Westfield Cosworth
View user's profile Send private message
Display posts from previous:   
Post new topic   Reply to topic   All times are GMT - 12 Hours
Goto page Previous  1, 2
Page 2 of 2

Jump to:  

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You can attach files in this forum
You can download files in this forum
You cannot post calendar events in this forum