vehicle diagnostics - OilSpec Guide

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7 Best Diagnostic Power Supplies for ECU Programming in 2026

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Discover the top diagnostic power supplies for ECU programming in 2026. Find the best options for performance, value, and ease of use. Read more now!

OilSpec Guide Team
September 21, 2026

Vetted

15 Best Emissions Diagnostic Smoke Testers (Advanced) for 2026

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Discover the top emissions diagnostic smoke testers for 2026. Find the best overall, value, and beginner options to diagnose EVAP leaks and more.

OilSpec Guide Team
September 19, 2026

States Are Forcing Speed-Limiter Devices On ‘Super Speeders’

General

States Are Forcing Speed-Limiter Devices On ‘Super Speeders’

Virginia and other jurisdictions are using or preparing speed limiters for repeat…

OilSpec Guide Team
November 7, 2026

A Chevy Dealer Thinks The Corvette ZR1X Is A $700,000 Car

General

A Chevy Dealer Thinks The Corvette ZR1X Is A $700,000 Car

George Nunnally Chevrolet lists a ZR1X convertible at $696,445, including a $400,000…

OilSpec Guide Team
November 7, 2026

The World’s Most Powerful Tractor Is This 1,600-HP Hybrid

General

The World’s Most Powerful Tractor Is This 1,600-HP Hybrid

Zoomlion says its 9DX hybrid tractor makes 1,600 hp, but key powertrain details and its…

OilSpec Guide Team
November 7, 2026

Smart #2 Celebrates Market Debut In China

Engine Oil Fundamentals

Smart #2 Celebrates Market Debut In China

Smart's two-seat electric #2 has debuted in China in Premium trim, with a limited-time…

OilSpec Guide Team
November 6, 2026