Recent content by Dude-Man

2023 Audi A4 (TFSI 45 DPAA engine) with 7k miles Out: Ravenol VMP In: RL Euro 5w-30. MANN HU 6013z synthetic filter. Reasoning: the EA888 Gen 3 was spec’d for 5w-40 502, then 5w-30 504, and now 0w-20 508. I’m sticking with the 504 spec for the greater HTHS over 508 and mid SAPS to reduce valve...

For a newer 4Runner with the A750-F 5-speed that calls for Toyota WS. Both fluids look good on paper with maybe a slight nod to Amsoil, and I can get 5 gallons delivered to my door of either for nearly the exact same cost of $294 (yes, I used the BITOG discount and have an Amsoil account). They...

Boron Additives

I like me some Ravenol (especially VMP), but this oil seems rather unremarkable. Pretty high Calcium and Magnesium and Moly are quite low. At least it has some Boron… would be interesting to see where it started at.

It is. But there are some 75W–90 fluids that are both GL5 and GL4 such as HPL and some Ravenol.

It would be interesting to see foaming test results for all these oils. Differential fluid can get whipped up into a froth pretty good sometimes, and as we all know air bubbles don’t lubricate very well.

I've been trying the No VII 5w-30 PCMO as it seems to have a good HTHS for the viscosity (3.4 / 10.54 @100 °C). It in theory is also better than either of the 5w-20's in cold weather with a lower pour point and lower CCS and MRV. Good flashpoint too and great viscosity index for not having any...

I've used Ravenol quite a bit since I was turned on to them for my Audi. I have a new SR5 4Runner and plan on using DGL 75w-85 (factory recommended weight) for the front diff as it's not as stressed, nor used as much, as the rear. For the transfer case it is ok to use 75w-90 and I am currently...

What does it mean when an oil shows a negative VII number, and therefore a higher HTFS vs HTHS? For example if you plug in Ravenol's SFE you get the following: oil density15.6 KV40 KV100 VI (info) HTHS A_Harman index VII HTFS (BO DV150) D341 a D341 b KV150 DV150 BO KV40 BO KV100 Ravenol SFE...

How about Ravenol SFE 5W-20? Basically 0W-20 viscosity range with a lowish VI (little VII?), but higher 2.9 HTHS. Low pourpoint. Low NOAK. Seems like good specs all around to replace the typical ILSAC GF-6A 0W-20. That price though... Density at 20 °C kg/m³ 842,0 EN ISO 12185 Colour...

This is the standard non-limited slip version. Born on date of 02/28/2018. Crazy VI of 222! Technical Data Sheet link

Originally Posted by oil_film_movies SubieRubyRoo, esters, yes. I just looked at the MSDS for this, and it has very little PAO (3%), and about 40% GroupIII, which leaves some room, around 35%, for maybe POE (doesn't show on an MSDS). The density at 0.850 seems to be a little high to be mostly...

Originally Posted by CT8 How will it help keep your valves clean when the oil evaporation is a minimal compared to the blow by gas products and oil mist ? Where would the "oil mist" be coming from? I would think valve stem seal leakage would be the worst culprit followed by higher evaporation...

Born on date of the oil is 1/25/2018 and it's made in France. Specs from Mobil to compare against: Viscosity, cSt (ASTM D445) 72.8 @ 40ºC 12.1 @ 100ºC Viscosity Index 164 Sulphated Ash, wt% (ASTM D874) 0.6 HTHS Viscosity, mPa•s @ 150 ºC (ASTM D4683) 3.58 Pour Point, ºC (ASTM D97) -45...

I have an '06 X-Terra with the same cold weather (#@$%!) performance. Tried the Amsoil MTG and it didn't help. Next went to 100% Redline MT-90 and that was no better. Finally settled on a 1qt. MT-90 and 3.5qt. MTL mix for a 75W-85 rating. Seems to work ok now but in really cold weather shifting...