SeanDezart
Well-Known Forum User
Yes Rob but we're talking specifically here of zinc-rich oils needing no additive.
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Engine oil
- Thread starter Andy79
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- engine oil
SeanDezart
Well-Known Forum User
I was reccomended Driven mineral oil after the running-in oil then the Driven fully-synthetic HR6......it's what MZR put in their cars.
240L31
Club Member
For all the european guys: I found out by accident, that the super cheap Mannol 10W40 Classic Oil features a crazy high amount of zinc (1900ppm IRC). This is what I've been running since the engine rebuild 5000 Km of spirited driving ago.
There is an Renault OEM oil analysis somewhere on the internet.
There is an Renault OEM oil analysis somewhere on the internet.
SeanDezart
Well-Known Forum User
240L31
Club Member
https://oil-club.de/index.php?thread/3726-mannol-classic-10w-40/
Here is where I found the analysis.. Should be great oil for L series engines!
Here is where I found the analysis.. Should be great oil for L series engines!
SeanDezart
Well-Known Forum User
The best protective oils appear to have higher content of Molybdenum (an anti-wear additive).....but where is it listed on the recent oils quoted ?
johnymd
Club Member
It’s in the first link you posted Jon.
Alphabettispaghetti
Club Member
I’d go for the Lucas tested in the initial report, as it seems it’s not just the zinc that makes it good
The more you look into it the more difficult it gets to pick an oil.
I did find this which was interesting comparing oils.
https://pantera.infopop.cc/topic/engine-oil-testing-results
I did find this which was interesting comparing oils.
https://pantera.infopop.cc/topic/engine-oil-testing-results
Alphabettispaghetti
Club Member
80lts!!
I'm using rektol classic https://www.qualitycarcovers.co.uk/absorbant-car-oil-mat/classic-engine-oil-rektol-se5.html
Phosphore ppm
SE=1088,
SF=1189,
SG/CE=950,
SG Sport=1105
Zinc ppm
SE=1199,
SF=1310,
SG/CE=1047,
SG Sport=1217
They say the mix of all additive is important (what they have of course
) . Just adding ZDDP is not well balanced oil in the end.
Phosphore ppm
SE=1088,
SF=1189,
SG/CE=950,
SG Sport=1105
Zinc ppm
SE=1199,
SF=1310,
SG/CE=1047,
SG Sport=1217
They say the mix of all additive is important (what they have of course
) . Just adding ZDDP is not well balanced oil in the end.
SeanDezart
Well-Known Forum User
This from Anglo-American Oil (Joe Gibbs/Driven) :
I spoke to Lake Speed who is the senior oil guy at Driven and he has seen this report and he is not worried about the apparent low rating of his oil, as
he disputes the real world accuracy of the tests and the interpretations that have been made.
A lot of labs use fairly standardised tests to report on oils and these can skew the relevance of the data produced . There is much weight placed throughout the document on the
TBN values of the oil as an example. This is a measure of the ability of the oil to cope with high acid levels and was a valid test when there were high sulphur levels in pump fuels as these produced sulphuric
acids which would cause corrosion. Modern fuels are now all low sulphur, so high TBN values are no longer a key performance measure for an oil.
These standardised tests identify zinc levels but not the actual type of zinc product being used in the oil. The different types work in different ways, some are there to last a long drain period
others have shorter life span but give better protection, so it depends on what the oils have been formulated to do as to how effective the zinc content is.
Lab results are one thing, but Driven develop and fine tune the oil formulations in actual engines doing wear analysis and performance measurements and have been doing this for the last 15 years.
Attached is a development report where Driven ran dyno power runs using different oils with the same spec engine, changing to a new cam for each oil and the measuring the wear rates and
power produced. This shows that the Driven products perform very well and better that some of those brands include in the lab tests that on paper are better.
I spoke to Lake Speed who is the senior oil guy at Driven and he has seen this report and he is not worried about the apparent low rating of his oil, as
he disputes the real world accuracy of the tests and the interpretations that have been made.
A lot of labs use fairly standardised tests to report on oils and these can skew the relevance of the data produced . There is much weight placed throughout the document on the
TBN values of the oil as an example. This is a measure of the ability of the oil to cope with high acid levels and was a valid test when there were high sulphur levels in pump fuels as these produced sulphuric
acids which would cause corrosion. Modern fuels are now all low sulphur, so high TBN values are no longer a key performance measure for an oil.
These standardised tests identify zinc levels but not the actual type of zinc product being used in the oil. The different types work in different ways, some are there to last a long drain period
others have shorter life span but give better protection, so it depends on what the oils have been formulated to do as to how effective the zinc content is.
Lab results are one thing, but Driven develop and fine tune the oil formulations in actual engines doing wear analysis and performance measurements and have been doing this for the last 15 years.
Attached is a development report where Driven ran dyno power runs using different oils with the same spec engine, changing to a new cam for each oil and the measuring the wear rates and
power produced. This shows that the Driven products perform very well and better that some of those brands include in the lab tests that on paper are better.
MaximG
Well-Known Forum User
Whoops slipped in a 0, 2x 4.5 lts