THE CAR NAIRA BLOG

Automotive engine oil is the result of a complex mix and certain compromises. Base oils (70–85%) Mineral oils: Historical workhorse made through distillation and hydroprocessing. Modern mineral oils are often chemically modified. Poly-α-olefins: Synthetic base stocks that offer a good balance of viscosity properties and volatility, as well as greater thermal and oxidative stability over mineral oils. Esters: Used in small amounts to make additives more soluble. Fluidity modifiers (5–20%) Viscosity modifiers: Polymers that stabilize the viscosity of oil as the temperature changes. They coil at low temperatures, increasing flow, and uncoil at higher temperatures, decreasing flow. Pour-point depressants: Molecules that prevent wax formation at low temperatures. Performance additives (8–15%) Antioxidants: Often aminic and phenolic compounds that prevent base-oil oxidation, the primary cause of oil degradation. Anti-wear additives: Compounds, commonly zinc dithiophosphate, that adhere to m

The assurance of extra traction on our wet and bad roads has made all-wheel drive (AWD) a popular option for many car buyers. Cars such as the Toyota RAV4, Toyota Highlander, Lexus RX350, Honda Pilot, Mercedes GL series are now in higher demand. However, the addition of all-wheel drive makes towing a vehicle complicated.  An AWD warning sticker What is AWD (All Wheel Drive) and 4WD (Four Wheel Drive)? Both terms are commonly used interchangeably as they have similarities. There're some differences, however. 4WD systems are generally optimized for off-road use . Part-time 4WD systems allow the driver to manually engage all four wheels at low speeds (crawl mode). Full-time 4WD systems work similarly to AWD, allowing drivers to keep all four wheels engaged. Most 4WD systems use front and rear differentials, plus a transfer case for engaging the front and/or rear axles e.g., the Toyota Hilux with the low jack mode. AWD systems are optimized for on-road use. AWD systems typically use

These lubricating fluids were designed to overcome the shortcomings of mineral or conventional oil. Thanks to the modification at the molecular level and the incorporation of more advanced systems of additives in their formulations, synthetic oil and lubricants have many advantages over conventional ones. The benefits of synthetic oil include. 1. UNIFORM COMPOSITION Synthetic lubricants are engineered from artificially built chemical compounds. These synthetic compounds are made from petroleum molecules which are first broken down and then rebuilt. Thanks to this rebuilding process, synthetic oils have a more uniform molecular structure. This property is highly important. It enables a more even and regular lubrication of the machine which results in less power consumption and increased efficiency. 2 FEWER IMPURITIES Mineral oils originate from natural sources. They contain various chemical compounds including waxes, oxygen, sulphur, nitrogen, phosphorus, and others. These compounds aff