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

Best Milwaukee Chargers & Batteries in 2026: Top Accessories & Parts

Garage Setup

Best Milwaukee Chargers & Batteries in 2026: Top Accessories & Parts

Discover the top Milwaukee chargers and batteries in 2026. Our roundup highlights the…

OilSpec Guide Team
June 23, 2026

DEWALT vs Makita: Which Power Tools Wins in 2026?

Garage Setup

DEWALT vs Makita: Which Power Tools Wins in 2026?

Compare DEWALT's 20V MAX Cordless Drill with Makita's line to find out which brand…

OilSpec Guide Team
June 23, 2026

15 Best Car Detailing Clay Kits in 2026

Vetted

15 Best Car Detailing Clay Kits in 2026

Discover the top car detailing clay kits for 2026. Our guide highlights the best…

OilSpec Guide Team
June 23, 2026

How to Clean a Milwaukee PACKOUT: A Practical Guide

Workshop Maintenance

How to Clean a Milwaukee PACKOUT: A Practical Guide

Learn step-by-step how to safely and effectively clean your Milwaukee PACKOUT storage…

OilSpec Guide Team
June 23, 2026