arronm Dropping a turd Gold Donating Members 9,520 Member For: 17y 27d Gender: Male Location: Perth Posted 29/10/11 07:08 AM Share Posted 29/10/11 07:08 AM I am planning to change oil for my fg xr6t. After reading this thread, I am a bit confused as different people use different oils. I will stick wt Castrol Edge fully synthetic as it is recommended by Ford. However, between 0W40 and 10W60, I'm still confused which one is used. Can anyone explain to me what the meaning of these 2 numbers. I don't drive my car hard all the times (just occasionally). Someone say 10W60 is too thick and only needed under hard driving while others says 0W40 is too thin and the turbo needs thicker engine. So which one is better for everyday driving?In the factory manual, they recommended 15W40 for XR6T (there's no synthetic oil at this grade), but for the XR8, they recommended 15W40 for the first 15000K then 0W40 thereafter. Should the turbo use the same engine with the V8?0-40 is the oil to use. The turbo oil seals dont like the 60 weight when cold. Link to comment Share on other sites More sharing options...
1600dave Donating Members 872 Member For: 13y 10m 13d Posted 29/10/11 07:28 AM Share Posted 29/10/11 07:28 AM Does the thicker weight increase the chance of oil pump failure, hot or cold?? Link to comment Share on other sites More sharing options...
SuckSqueezeBangBlow ʎǝʞuoɯ ɹoıuǝs Donating Members 1,808 Member For: 15y 11m 6d Gender: Male Posted 29/10/11 07:50 AM Share Posted 29/10/11 07:50 AM you probably don't want to be working the motor when cold with the 60. Link to comment Share on other sites More sharing options...
Bomber Carnage on the Garage Floor Donating Members 3,994 Member For: 14y 6m 11d Gender: Male Location: Gold Coast Posted 29/10/11 08:44 AM Share Posted 29/10/11 08:44 AM Agree 60W is too thick unless doing track stuff, but I wouldn't run '0' weight myself. Nothing to do with cold start etc, it's more that these engines are known to get 'chattery' in the valve train etc running oil that thin. If that doesn't bother you then go that way. Link to comment Share on other sites More sharing options...
brettenator Member 66 Member For: 13y 10m 20d Gender: Male Posted 29/10/11 03:12 PM Share Posted 29/10/11 03:12 PM What some of you are saying doesn't really make sense. When talking sub operating temperature, how can a viscosity of 0 be necessary when Ford recommend a 15 winter? Additionally, you would think owners of both modified and unmodified Falcons would drive similarly when the engine's cold. Pitlane recommend the 10W-60, which would mean a bit to most on here I assume. Link to comment Share on other sites More sharing options...
arronm Dropping a turd Gold Donating Members 9,520 Member For: 17y 27d Gender: Male Location: Perth Posted 29/10/11 06:07 PM Share Posted 29/10/11 06:07 PM Check the castrol web site . They recommend 0-40 for turbo. Link to comment Share on other sites More sharing options...
SuckSqueezeBangBlow ʎǝʞuoɯ ɹoıuǝs Donating Members 1,808 Member For: 15y 11m 6d Gender: Male Posted 29/10/11 08:58 PM Share Posted 29/10/11 08:58 PM ...and 10w-60 for 'high performance applications'.Bomber: how is 0w-40 too thin? its still classed as a 40 at operating temperature and if its thinner at start up then that's better than a 10 or a 15. Link to comment Share on other sites More sharing options...
Bomber Carnage on the Garage Floor Donating Members 3,994 Member For: 14y 6m 11d Gender: Male Location: Gold Coast Posted 29/10/11 10:03 PM Share Posted 29/10/11 10:03 PM ...and 10w-60 for 'high performance applications'.Bomber: how is 0w-40 too thin? its still classed as a 40 at operating temperature and if its thinner at start up then that's better than a 10 or a 15. go with that then :sungum: Link to comment Share on other sites More sharing options...
ScatterBrain Donating Members 316 Member For: 15y 5m 21d Gender: Male Location: Brisbane Posted 29/10/11 11:04 PM Share Posted 29/10/11 11:04 PM I'm using Nulon 15W50, seams to work well and oil temps are lower then when I was using 10W40. Link to comment Share on other sites More sharing options...
arronm Dropping a turd Gold Donating Members 9,520 Member For: 17y 27d Gender: Male Location: Perth Posted 30/10/11 01:42 AM Share Posted 30/10/11 01:42 AM (edited) ...and 10w-60 for 'high performance applications'.Bomber: how is 0w-40 too thin? its still classed as a 40 at operating temperature and if its thinner at start up then that's better than a 10 or a 15.Yep its right at the bottom line 10-60. Castrol web site says 0-40 or magnatec 10-40 which is the preferred oil. 60 maybe a good choice at the race track when you can keep the car hot. When I changed from 10W to 0W my oil pressure when cold went from 100psi to a max of 75psi. I would say the 100psi would have really been pushing the limits of the turbo seals Edited 30/10/11 01:48 AM by arronm Link to comment Share on other sites More sharing options...
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