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Browsing Tag

Approval process

5 posts
  • Label & Documentation

Certificates and ‘Letters’: What a Real Approval Document Usually Looks Like

official certification and documentation
Secure your understanding of authentic approval documents and discover what makes certificates and letters truly legitimate.
  • OilSpec Guide Team
  • March 26, 2026
View Post
  • Label & Documentation

How to Spot a Legit Approval Claim in 30 Seconds

verify approval claim quickly
How to spot a legit approval claim in 30 seconds? Learn key signs that reveal authenticity and what red flags to watch out for.
  • OilSpec Guide Team
  • March 22, 2026
View Post
  • OEM Approvals

The Approval Expiration Problem: Can Approvals Change Over Time?

approval validity period change
Yes, approvals can change over time as renewal requirements evolve and circumstances…
  • OilSpec Guide Team
  • March 9, 2026
View Post
  • OEM Approvals

Mercedes ‘Sheet’ Specs: Why MB Approvals Are Listed by Sheet Numbers

mercedes sheet approval system
Gaining clarity on Mercedes ‘Sheet’ specs reveals how sheet numbers streamline approvals, but understanding the full system unlocks their full benefits.
  • OilSpec Guide Team
  • March 1, 2026
View Post
  • OEM Approvals

When Two Approvals Conflict: How to Decide Without Guesswork

resolving conflicting approval decisions
Learning to navigate conflicting approvals requires a clear, structured approach—discover how a decision matrix can help you make fair, informed choices.
  • OilSpec Guide Team
  • February 26, 2026
View Post
This Rear-Engine, Flat-Six STI Is A Poor Man’s Porsche 911 Turbo
  • General

This Rear-Engine, Flat-Six STI Is A Poor Man’s Porsche 911 Turbo

Smeedia is fitting a turbocharged Subaru EG33 flat-six into an STI’s rear, retaining…
  • OilSpec Guide Team
  • November 14, 2026
Do EVs Wear Tires Faster? Here's What The Studies Show
  • General

Do EVs Wear Tires Faster? Here’s What The Studies Show

Studies find higher tire wear in some EV comparisons, but vehicle weight, driving style…
  • OilSpec Guide Team
  • November 14, 2026
Would You Upgrade Your Old Car’s Infotainment If It Cost You Almost Every Button?
  • General

Would You Upgrade Your Old Car’s Infotainment If It Cost You Almost Every Button?

Bentley is offering a 9.7-inch infotainment upgrade for second-generation Continental…
  • OilSpec Guide Team
  • November 14, 2026
Toyota Tundra Recalled Again For Camshafts That May Snap While Driving
  • Engine Oil Fundamentals

Toyota Tundra Recalled Again For Camshafts That May Snap While Driving

Toyota plans a voluntary recall covering about 62,000 Tundras from model years…
  • OilSpec Guide Team
  • November 14, 2026
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