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Royal Purple 51520 API-licensed SAE 5W-20 High Performance Synthetic Motor Oil - 5 Quart, (Model: ROY51520)

Q: Do I need to use a Royal Purple filter to get the best performance of this oil or will any filter do?

I use fram filters. In the vehicles that I need to be very reliable I use the expensive Walmart Fram Filters. In my around town vehicles I use the cheap fram filters. I have had no problem with any of them. You will enjoy the Royal Purple. Just make sure it shows up on the oil dip stick. My Ford F150 used 9 quarts the 1st time. Not the typical 6 quarts. Now it uses a little over 7 quarts.

Q: What is the shelf life of this oil

This oil is synthetic. It will not break down or become contaminated like traditional oils may. That said, only buy what you think you'll use in the next 60 months. If you buy this 5 gallon model, consider how many other vehicles can benefit from it. I have two cars, both of them use 5-20. So for me, this is a no-brainer purchase.

Q: some have dexos some dont, why? mine arrived with no dexos logo

The dexos specification applies to most, but not all, GM vehicles model year 2011 or later. (I) have a nissan, I do NOT use Dexos. I've no idea if Dexos is superior in MY vehicle but since it is NOT specified, I don't use it.

Product ID: 291004703

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Details

Viscosity
5W-20
Brand
Royal Purple
Vehicle service type
Car
UPC
641330515200
Global Trade Identification Number

⛽Boosts fuel efficiency

⚙️5W-20 viscosity for optimal engine flow

🛡️Superior wear & corrosion protection

Description

🛢️ Drive smarter, not harder — unleash premium engine power with Royal Purple!

FUEL SMART FORMULA - Enhances fuel economy so you save at the pump without sacrificing power.
CATALYTIC SYSTEM GUARDIAN - Protects your expensive emission system for cleaner, greener drives.
ENGINE OPTIMIZED VISCOSITY - Precision 5W-20 grade ensures smooth cold starts and peak performance under pressure.
SEAMLESS SYNTHETIC UPGRADE - Compatible with mineral and synthetic oils—no special procedures needed to switch.
PROVEN API LICENSED PERFORMANCE - Meets API SN, ILSAC GF-5, and Dexos1 standards for trusted, high-performance reliability.

Royal Purple 51520 is a high-performance synthetic motor oil with 5W-20 viscosity, designed to optimize engine efficiency and longevity. It offers superior wear protection, improved fuel economy, and safeguards catalytic emission systems. Fully API SN licensed and compatible with both mineral and synthetic oils, it’s the smart upgrade for modern gasoline and diesel engines.

Have a Question? See What Others Asked

Do I need to use a Royal Purple filter to get the best performance of this oil or will any filter do?

What is the shelf life of this oil

some have dexos some dont, why? mine arrived with no dexos logo

when will oil filter for Genesis 5.0 be available?

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Excellent communication throughout the order process. Product is perfect.

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