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Browsing Category

Viscosity & Grades

29 posts
  • Viscosity & Grades

Seasonal Oil Changes: Smart Strategy or Outdated Habit?

seasonal oil change debate
Guide to seasonal oil changes reveals if your climate and vehicle still need this traditional maintenance practice.
  • OilSpec Guide Team
  • February 5, 2026
View Post
  • 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
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  • Viscosity & Grades

Fuel Economy Oils: How Much Comes From Viscosity vs Additives?

viscosity additives impact fuel
Great fuel economy depends on both viscosity and additives—discover which factor plays the bigger role in optimizing your engine’s performance.
  • OilSpec Guide Team
  • February 5, 2026
View Post
  • Viscosity & Grades

Thicker Isn’t Always Safer: When High Viscosity Increases Wear

thick oil can cause damage
When high viscosity oil causes increased wear, understanding the risks can help prevent costly machinery damage—discover why thicker isn’t always safer.
  • OilSpec Guide Team
  • February 5, 2026
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  • Viscosity & Grades

Why Oils ‘Shear Down’: The Viscosity Change Nobody Notices Until It’s Too Late

oil viscosity deterioration unnoticed
Protect your machinery by understanding why oils shear down and how unnoticed viscosity loss can lead to costly equipment damage—discover the warning signs today.
  • OilSpec Guide Team
  • February 5, 2026
View Post
  • Viscosity & Grades

Cold Cranking and Pumpability: The Two Winter Specs That Matter More Than ‘W’

winter fuel performance factors
Keenly understanding cold cranking and pumpability reveals why these winter specs matter more than just the ‘W’ rating for reliable engine starts.
  • OilSpec Guide Team
  • February 5, 2026
View Post
  • 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
View Post
  • Viscosity & Grades

20 Vs 30 Vs 40 Weight: What You’Re Actually Choosing at Operating Temp

comparing oil viscosities
Aiming to choose the right gear weight at operating temperature? Discover how temperature impacts material strength and what to consider.
  • OilSpec Guide Team
  • February 5, 2026
View Post
  • Viscosity & Grades

0W vs 5W: The Cold-Start Truth Most People Get Backwards

understanding 0w vs 5w
Aiming to clarify the 0W versus 5W debate, discover which oil truly performs best in cold starts and why your choice matters.
  • OilSpec Guide Team
  • February 5, 2026
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6 Best Car Care Kits for Teens in 2026
  • Vetted

6 Best Car Care Kits for Teens in 2026

Discover the top car care kits for teens in 2026. Find the best overall, value, and…
  • OilSpec Guide Team
  • August 8, 2026
Renault Trucks Surges In Global Coverage
  • General

Renault Trucks Surges In Global Coverage

Renault Trucks experiences a surge in international media mentions, with 17 times the…
  • OilSpec Guide Team
  • August 7, 2026
Liqui Moly
  • General

Liqui Moly

German automotive additive company Liqui Moly is under growing attention as searches…
  • OilSpec Guide Team
  • August 7, 2026
Volvo Surges In Global Coverage
  • General

Volvo Surges In Global Coverage

Volvo's media mentions have surged, with GDELT reporting 25 times the usual coverage,…
  • OilSpec Guide Team
  • August 6, 2026
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