Best oil viscosity?
03-17-2018, 01:56 PM
#16
Three Wheelin'
03-18-2018, 03:43 PM
#17
Rennlist Member
Good call, using the sale and rebate for my summer driving season too.
03-18-2018, 06:15 PM
#19
Rennlist Member
Although most would say that 5-50 has the advantage over 0-40 on the track, the lower weight has the advantage of being able to hold less heat and have slightly less resistance than 5-50.
03-18-2018, 09:41 PM
#21
Banned
Join Date: Jan 2013
Location: Chicagoland Area
Posts: 26,142
Likes: 0
Received 5,388 Likes
on
2,509 Posts
Originally Posted by abstruse1
Thanx. But see my later thread about the oil level mystery
03-18-2018, 10:09 PM
#23
Rennlist Member
But Amsoil is not. Porsche only approves of certain types of oil, not just weight (a bit outdated list, but couldn't quickly find a newer version): http://autoworksco.com/wp-content/up...y-2012-A40.pdf. Most people run Mobil 1 and Liquimoly, which are approved.
03-19-2018, 09:11 AM
#24
Rennlist Member
Amsoil shows up on a newer version from 2015 here, but not in a 50W flavor:
http://www.fruitlands.net/tdi/Porsch...EngineOils.pdf
It is interesting that 50W is so rare on this list.
Dave
'05 987S
'92 968 SP3
'88 944 NA (gone)
http://www.fruitlands.net/tdi/Porsch...EngineOils.pdf
It is interesting that 50W is so rare on this list.
Dave
'05 987S
'92 968 SP3
'88 944 NA (gone)
03-19-2018, 09:27 AM
#25
Banned
Join Date: Jan 2013
Location: Chicagoland Area
Posts: 26,142
Likes: 0
Received 5,388 Likes
on
2,509 Posts
For sure. I think 5W50 first became Porsche approved back in about 2008 (give or take a year or so), and it was really hard to find. Nearly impossible to locate retail. And then it was only Mobil and Castrol. Castrol fell off the list a few years ago. Now only Mobil. I wish Walmart would start stocking it, and I also wish Mobil would start packaging it in the 5 litre jugs.
03-19-2018, 09:41 AM
#26
Rennlist Member
For sure. I think 5W50 first became Porsche approved back in about 2008 (give or take a year or so), and it was really hard to find. Nearly impossible to locate retail. And then it was only Mobil and Castrol. Castrol fell off the list a few years ago. Now only Mobil. I wish Walmart would start stocking it, and I also wish Mobil would start packaging it in the 5 litre jugs.
03-19-2018, 10:18 AM
#27
Banned
Join Date: Jan 2013
Location: Chicagoland Area
Posts: 26,142
Likes: 0
Received 5,388 Likes
on
2,509 Posts
Mobil 5w50 seems pretty rare to find and somewhat pricey (for M1, not compared to Joe Gibbs and other specialty oils). The NAPA sale you mentioned plus the Mobil coupon is a helluva deal. I got 9 quarts of 5w50 for the 981S and 5 quarts of 5w30 for our A3 for $75 or so total after rebates.
03-19-2018, 10:26 AM
#28
Rennlist Member
Napa is the only place, over the last several years, that I've been able to consistently find it. In fact, I'm picking up another 6-pack today, because they didn't have enough when I went in last week. FYI, if you'd like to see 4 year's worth of Blackstone UOA data, search my thread on the 991 Forum.
03-19-2018, 10:33 AM
#29
Banned
Join Date: Jan 2013
Location: Chicagoland Area
Posts: 26,142
Likes: 0
Received 5,388 Likes
on
2,509 Posts
03-19-2018, 11:54 AM
#30
TX summers can be over 100 deg. F frequently.
The manual specifies 0W-40, 5W-40, and 5W-50. The 0W-40 is "for all temperature ranges," while the other two are for temps above -13 deg. F. We never have temps that cold, so all three grades are approved. Question is which one is best.
The manual specifies 0W-40, 5W-40, and 5W-50. The 0W-40 is "for all temperature ranges," while the other two are for temps above -13 deg. F. We never have temps that cold, so all three grades are approved. Question is which one is best.
There's no question that I would go with the 5W-40.