I got these density numbers directly from Dave. thought i'd share.(especially for you mixing fans looking for specific effects).
@60F(I asked Dave what ASTM method they used,he said he'd have to look it up,but i'm thinking it must be ASTM D4052,but i'm not 100% sure).
5W-40(not the euro one)- .888
10W-40 - .890
5W-50 - .887
10W-50 - .892
10W-60 - .889
...and just to combine with this,the next density numbers are from a thread here back in 2013 titled Red Line: Chemistry Tweaks Across The Street Range.
@60F
5W-20 - .890
5W-30 - .888
10W-30 - .891
do you notice the trend between the same API viscosity weights and the different winter numbers? Dave told me that the 10W-40 and 5W-40 use the very same base and cuts.
Dave also gave me this on the ones I asked about(I don't know if the same for the other weights from the other thread).
moly - 600
Bor - 105
Cal - 2740
Z - 1225
Ph - 1375
SA - 1.2
Sul - .43(I couldn't hear to well when he gave this but I think it's correct,still,i say this incase I heard wrong,the others I got correct for sure).
TBN - 10
I asked about Si,Sod but he said he'd have to look it up,i didn't want to bother him further. he did say Mag should be 0.
I know it would seem this has been done to death but not really,things can change over time for different reasons.
for comparison,here is one of the more recent VOA that a member here had done. this sample should be part of the "tweaks across the street range".
VOA RL 5W-40(not euro version)
moly - 566
pot - 5
bor - 111
sil - 14
sod - 14
cal - 2719
mag - 9
ph - 1090
z - 1181
fp - 440F
cSt@212F - 14.8
a lab can be a little off but note the Z and Ph and their relation to what Dave said.(also the 14.8).
anyway,use to your engines good health. stout stuff that RL.
@60F(I asked Dave what ASTM method they used,he said he'd have to look it up,but i'm thinking it must be ASTM D4052,but i'm not 100% sure).
5W-40(not the euro one)- .888
10W-40 - .890
5W-50 - .887
10W-50 - .892
10W-60 - .889
...and just to combine with this,the next density numbers are from a thread here back in 2013 titled Red Line: Chemistry Tweaks Across The Street Range.
@60F
5W-20 - .890
5W-30 - .888
10W-30 - .891
do you notice the trend between the same API viscosity weights and the different winter numbers? Dave told me that the 10W-40 and 5W-40 use the very same base and cuts.
Dave also gave me this on the ones I asked about(I don't know if the same for the other weights from the other thread).
moly - 600
Bor - 105
Cal - 2740
Z - 1225
Ph - 1375
SA - 1.2
Sul - .43(I couldn't hear to well when he gave this but I think it's correct,still,i say this incase I heard wrong,the others I got correct for sure).
TBN - 10
I asked about Si,Sod but he said he'd have to look it up,i didn't want to bother him further. he did say Mag should be 0.
I know it would seem this has been done to death but not really,things can change over time for different reasons.
for comparison,here is one of the more recent VOA that a member here had done. this sample should be part of the "tweaks across the street range".
VOA RL 5W-40(not euro version)
moly - 566
pot - 5
bor - 111
sil - 14
sod - 14
cal - 2719
mag - 9
ph - 1090
z - 1181
fp - 440F
cSt@212F - 14.8
a lab can be a little off but note the Z and Ph and their relation to what Dave said.(also the 14.8).
anyway,use to your engines good health. stout stuff that RL.