Does this Oil suitable for 1999 chevy silverado 2500 186000 miles?

I have been using full synthetic oil in my 98 Silverado 5.7. I now have 364k miles with no engine issues at all. I'd recommend it for anything that takes 5w30

Does the Castro 5w-50 SPT meet the Ford spec WSS-M2C931-B for the GT 500?

Castol says it meets the spec, and Ford SVT has approved Castrol 5W50 for use in the GT500. I use this oil in my 2013 GT500.

is current product dexos 1 approved. I see it on the quart, but not on the 5 quart and wondering if it is an old picture

"Approved - GMdexos1™ supersedes GM-LL-A-025, GM6094M and GM4718M" This is indicated on the 5W-30 Castrol Edge High Mileage data sheet, dated 09Nov15. On their latest data sheet dated 20Sep17, this approved statement is no longer indicated. 1 quart size or 5 quart size makes no difference. If the product was made after 20Sep17 then it is not likely to be approved for engines requiring dexos1. I would safely assume the bottle labeling will reflect whether or not using this as a suitable substitute over dexos1 type oil is acceptable. The picture is old and will, or should, be changed so their is no confusion.

I ordered this and it came with the letters SAE in front of the 5w-30, does it matter?

SAE refers to the grading system. There are actually thicker Euro 5w-30 oils, but this is a thin 5w-30 for American and Asian cars. This particular blend is the latest additive formulation for GDI / turbo engines, it should be one of the best products on the market.

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EDGE HIGH MILEAGE

Product ID: 28929731

Details

Brand
Castrol
Liquid Volume
160 fluid
Package Information
Bottle
SAE J300 Viscosity Grade
5W-30
Vehicle Service Type
For vehicles

⛽15,000 miles per oil change

⚙️Reduces leaks & power-robbing deposits

🛡️Phosphorus Replacement Tech for emission system

S$136

Duties & taxes included

In stock

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Description

🛢️ Elevate your high-mileage ride with Castrol EDGE — because your engine deserves the edge.

UNMATCHED LONGEVITY - Drive longer with up to 15,000 miles between oil changes—less hassle, more road time.
LEAK DEPOSIT DEFENSE - Minimizes leaks, oil burnoff, and power-robbing deposits to keep your engine running smooth.
TOP TIER CERTIFICATION - Meets or exceeds API SP/SN PLUS and ILSAC GF-6 standards for cutting-edge engine protection.
EMISSION SYSTEM GUARDIAN - Phosphorus Replacement Technology protects your catalytic converter for peak performance.
TAILORED FOR HIGH MILEAGE - Specifically engineered for vehicles over 75,000 miles to extend engine life and reliability.

Castrol EDGE High Mileage 5W-30 is a premium full synthetic motor oil designed for vehicles with over 75,000 miles. Featuring advanced Phosphorus Replacement Technology, it protects emission systems while reducing leaks, oil burnoff, and deposits. With up to 15,000 miles between oil changes and compliance with top industry standards, it ensures superior engine performance and longevity.

Specifications

ASIN	B01CRYHNI8
Automotive Fit Type	Universal Fit
Best Sellers Rank	#263 in Automotive ( See Top 100 in Automotive ) #5 in Motor Oils
Brand Name	Castrol
Compatible with Vehicle Type	For vehicles with over 75,000 miles
Container Type	Bottle
Customer Reviews	4.8 4.8 out of 5 stars (6,919)
Global Trade Identification Number	00079191231289
Included Components	Motor Oil
Item Type Name	Motor Oil
Item Weight	0.27 g
Liquid Volume	160 fluid ounces
Manufacturer	Castrol
Manufacturer Part Number	15906E
Manufacturer Warranty Description	12 Months
Model Number	03128C
SAE J300 Viscosity Grade	5W-30
Size	5 Quarts
UPC	079191231289
Unit Count	160 Fluid Ounces
Viscosity Level	Low to Medium

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