performance - OilSpec Guide

OEM Approvals

Ford EcoBoost and Spec Matching: Why ‘Close Enough’ Can Backfire

risks of mismatched specs

The truth about Ford EcoBoost and spec matching reveals how small differences can lead to unexpected performance issues, making it crucial to understand why “close enough” isn’t enough.

OilSpec Guide Team
March 3, 2026

Viscosity & Grades

High Temperature, High Shear: Why HTHS Isn’t the Same as ‘40 Weight’

high shear oil viscosity

A explains why HTHS viscosity differs from traditional ’40 weight’ ratings and how it impacts your engine’s protection—discover the full story to stay informed.

OilSpec Guide Team
February 5, 2026

Viscosity & Grades

Viscosity Index Explained: The ‘Stays Stable’ Claim You Can Actually Test

testing viscosity stability

An in-depth look at the viscosity index and how you can test its stability to ensure optimal engine performance.

OilSpec Guide Team
February 5, 2026

top rechargeable inspection lights

Vetted

15 Best Underhood Inspection Lights (Rechargeable) for Pros in 2026

Looking for the top rechargeable underhood inspection lights of 2026? Learn which…

OilSpec Guide Team
May 8, 2026

top workshop waste oil tanks

Vetted

14 Best Waste Oil Storage Tanks for Workshop in 2026

Great choices in waste oil storage tanks for your workshop await in 2026; discover…

OilSpec Guide Team
May 8, 2026

wet clutch compatibility issues

Motorcycle & Small Engines

Why Motorcycle Oils Avoid Some Friction Modifiers (Wet Clutch Reality)

Gaining insight into motorcycle oil friction modifiers reveals how certain additives…

OilSpec Guide Team
May 8, 2026

top 8 inch heavy duty bench grinders

Vetted

15 Best 8 Inch Heavy Duty Bench Grinder in 2026

Navigating the top 15 heavy-duty 8-inch bench grinders in 2026 can be challenging, but…

OilSpec Guide Team
May 8, 2026