Keeping your diesel oil fresh and clean is one of the easiest ways to prolong engine life. At O'Reilly Auto Parts, we carry heavy-duty diesel motor oil, oil additives and oil filters to help you maintain your diesel engine.

A V24 engine is a 24- cylinder piston engine where two banks of twelve cylinders are arranged in a V configuration around a common crankshaft. The majority of V24 engines, however, have been "dual V12" engines where two separate V12 engines are placed in line with each other.

Mar 15, 2025 · Here is a curated list of some of the best diesel engine oils available, known for their ability to enhance performance and protect engines: 1. Shell Rotella T6 Full Synthetic 5W-40. Fully synthetic, offering top-tier performance.

Valvoline Premium Blue Heavy Duty Engine Oil delivers superior protection for hardworking trucks and equipment. The proprietary One Solution Technology is designed for heavy duty diesel, gas or natural gas engines in both on road and off highway applications.

Nov 24, 2009 · Stick to the 15W-40. If you want to get most out of synthetic oil you take oil samples and send them off for analysis to see if it needs to be changed. Synthetic oil is better but it's expensive so you want to get all the use out of it you can. I use Rotella 15W-40 and change it every 5000 miles.

Shell Rotella T4 Triple Protection 15W-40 diesel engine oil provides significantly better wear protection than previous generation oils to maximize engine efficiency and prolong engine life in a wide range of heavy-duty engines.

Valvoline All-Fleet Plus Engine Oil Is Formulated To Provide Optimum Performance In Modern Low-Emission Diesel Engines Operating Under A Variety Of Service Conditions Including Engines w/ Cooled Exhaust Gas Recirculation (EGR).

It provides performance, protection and advanced fuel economy (up to 1.5% over 15W-40 conventional oils in on-highway operation) in modern emissions treatment equipped diesel …

Discover diesel engine oils from Chevron Delo, including 15W-40, 10W-30, and more. Shop the best heavy-duty diesel oil from Chevron Delo at O'Reilly Auto Parts.

2 days ago · When it comes to maintaining your diesel engine, selecting the right oil is crucial for performance and longevity. Full synthetic 15W40 diesel oil is a popular choice among truck and heavy equipment owners. This guide will help you understand what to look for when choosing the best full synthetic 15W40 diesel oil for your needs.