Read more: 15 Popular Oil Filter Brands, Ranked In the distant past, and still for some engine applications, we had single-grade engine oils like 20W, 30W, or 40W. While a 40W oil was a great ...
The 20W-50 costs $11.83 for a one-liter container ... Just in time for the start of the season, Porsche Classic is launching its own engine oil for air-cooled flat-four and flat-six engines ...
such as 20W, to ensure the oil could flow rapidly to lubricate engine components before any damage occurred during cold starts. Multi-viscosity oils (5W-20 and 5W-30) are formulated to flow faster ...