How to change your engine oil
Two Stroke Engine Oils & Mix Ratios
HYBRID TAXI OILS
VISCOSITY V's SPECIFICATION
How to pick the right engine oil for your vehicle?
Oil Additives - Whats in your oil and why is it there?
JASO DL-1 & JASO DH-2 Information
E85 Compatible Engine Oils
ENVIRO+ LOW & MID SAPS OILS
Zinc Myths & Legends
Diesel Particulate Filters (DPFs) and Correct Lubricants
What are the benefits of using the correct engine oil?
What is the Penrite Extra Ten?
API SN Product List - November 2014
Hybrid Engine Oils
Mazda Rotary Engine Oils
Engine Oil Summary
What is the Difference between HPR, Classic & Shelsley Oils?
EGR and Engine Oils in Diesel Engines
Esters and Engine Oils
API CK-4 and FA-4 Oil Specifications
Whats the difference between Synthetic, Semi Synthetic and Mineral based oils?
Pro Gear Differential, Gearbox & T/Case Oils
Trans Gear Manual Transmission & Transaxle Oils
ATF Multi Vehicle LV - New Product (Replaces ATF DX VI)
Coolant Types & Their Purpose
JASO MA MA1 & MB Differences
Guide to Greases
Hydrolastic Suspension Fluid
Penrite Classic Motorcycle Oils
Castor Oil - History
Draining Your Oil
Classic Car Coolants
Product substitution guide
Rolls Royce 363 and Mineral Brake Fluid
Choosing the right Brake Fluid
Brake Fluid Testers
DOT 5 SILICONE BRAKE FLUID
Penblue (Adblue) - Fuel additive
VALVE SEAT RECESSION