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.

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.

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.

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Royal Purple (06520-6PK API-Licensed Heavy Duty SAE 5W-20 High Performance Synthetic Motor Oil - 1 Quart, (Case of 6)

Product ID: 276334833

Details

Brand
Royal Purple
Liquid volume
32 Fluid
Package information
Bottle
SAE J300 Viscosity Grade
5W-20
Vehicle service type
Car

⛽Boosts Fuel Efficiency

⚙️5W-20 SAE Viscosity Grade

🛡️Superior Engine Wear Protection

Description

🛢️ Drive Royal Purple, Drive the Future of Performance!

SEAMLESS UPGRADE - Compatible with mineral and synthetic oils—no special procedures needed to switch.
CORROSION DEFENSE - Superior corrosion protection ensures your engine stays pristine under all conditions.
FUEL SMART PERFORMANCE - Optimized to increase fuel efficiency, saving you money at every fill-up.
EMISSION SYSTEM GUARDIAN - Protects your catalytic converter from costly damage, keeping your ride eco-friendly and compliant.
ENGINE ARMOR IN A BOTTLE - Advanced synthetic formula delivers unmatched wear protection for your engine’s longevity.

Royal Purple 51520 is a high-performance synthetic motor oil with SAE 5W-20 viscosity, designed for vehicle-specific fit. It combines premium base oils and proprietary additives to enhance engine wear protection, improve fuel efficiency, and safeguard catalytic emission systems. Fully compatible with mineral and synthetic oils, it meets API SN, ILSAC GF-5, and Dexos1 1 standards, making it a trusted choice for both gasoline and diesel engines.

Specifications

ASIN	B00ELHTC5C
Automotive Fit Type	Universal Fit
Brand Name	Royal Purple
Compatible with Vehicle Type	Car
Container Type	Bottle
Customer Reviews	4.9 4.9 out of 5 stars (2,124)
Global Trade Identification Number	00641330065200
Item Weight	2 Pounds
Liquid Volume	32 Fluid Ounces
Manufacturer	Royal Purple
Manufacturer Part Number	06520-6PK
Model Number	1520
SAE J300 Viscosity Grade	5W-20
Size	1 Quart, Case of 6
UPC	641330065200
Unit Count	192 Fluid Ounces
Viscosity Level	Low to Medium

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