Recent content by Petropolymers

The best lessons learned are those leaned the hard way. This one (actually a series of 3 in the one event) is 30 years old and it has never be forgotten. My wife, not long married, had a work Christmas function without partners so I decided to do some maintenance on a new to me 2nd hand car. I...

It was a Nissan thing. In the late 1980s and 1990s the Nissan Genuine Oil in Australia was a 7.5W-30 - see below from an R32 Skyline manual. At the time (up until 1992 I think) Nissan was still making vehicles in Australia so they would have had someone making oil for them. They probably decided...

Group II - the API CK-4 sulfur limit would stop you from blending with high proportion of group I as the additive package contributes most of the 4,000ppm maximum sulfur limit. Typically it would be 3,600-3,800ppm sulfur from the detergent (calcium sulfonate/magnesium sulfonate) and anti-wear...

2014 Toyota Prado 3.0L Turbo Diesel I normally blend my own as I am fortunate enough to work in the lubricants industry. However, the last 2 changes have been special, To prove shelf life of oil is a fallacy my last 2 oil changes have been with an oil 11 years older than the engine it has...

Dexos 2 is a lower ash engine oil for vehicles with diesel particulate filters. It uses ACEA C3 (0.8% max ash) as the basis with some additional GM specific demands. The other key difference is that the fluid (because of ACEA C3) must have a HTHS (high temperature high shear) viscosity of...

Sulphur will be coming from the detergent (calcium sulphonate) and zinc (ZDDP - zinc dialkyl dithio phosphate - the thio in dithio means sulphur containing). Looks to have some ester based upon FTIR peak around 1740cm-1. It could be methacrylate viscosity modifier (low shear) as it will also...

FUCHS announces acquisition of NULON Products Australia Pty Ltd No more vehicle manufacture in Australia, now an Australian Lubricant Manufacturer being bought by Fuchs. https://www.fuchs.com/group/press/p...ion-of-nulon-products-australia-pty-ltd/

A large portion of Group III according to the MSDS. Distillates, petroleum, hydrotreated heavy paraffinic CAS 64742-54-7 >70%

Looks pretty normal for a CJ-4 or CK-4 low ash heavy duty diesel engine oil (sulphated ash below 1.0%). Calcium (detergent) being low is offset by the presence of Magnesium detergent in this formulation.

This does look like Lubrizol chemistry but it is their older API SN/GF-5 additive package and definitely not one of their API SN + OEM products. Lubrizol do not use antimony as a core package component in engine oils. As previous poster has said there are so many competing/obviously wrong claims...