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...