how about putting this in rear end oil with locker or limited slip gears..OK to do or not. Thinking too thick for transmission right??

You can use this in your rear end and your transmission. You will see great results in both. You can use the 9100 anywhere you want to reduce heat and friction. Not only do we sell the products we also have a fleet of 40+ vehicles that we use the 9100 in engine oil, transmissions, rear ends and power steering systems, also is great if you have front oil bath type bearing. Please let us know if you need anything else.

Does this work in any engine? I haven't read anything to suggest it doesn't but all the reviews come from only Powerstroke owners.

It works well in engines using a high pressure oil rail to power the injectors, not sure why you would run it in a Cummins or any other common rail or high pressure fuel/injector nozzle or gas engine, just run rotella t-6 synthetic oil and a good filter to keep those running strong for a very long time.Also nearly any diesel will benefit from a quality fuel additive, I find in all 6 of my trucks (3 brands) that power service diesel kleen will more than pay for itself in fuel Economy improvements alone (about 5-15%).

can you use this with full synthetic oil

Yes. I use Synthetic oil, Rotella T6 for diesel applications. It provides better lubrication, for longer intervals. Works great with Archoil.

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AR9100 Oil Additive (16oz) for All Vehicles - Powerstroke Cold Starts, Eliminates Injector Problems

Product ID: 9538858

Details

Brand
Archoil
Item Weight
16 ounces
Liquid Volume
16 fluid
Material
Fluid
Package Information
Jug

⏳Extends oil life & engine health

🔥Reduces noise, vibration & heat

⚙️Eliminates injector stiction

75844CFA

Duties & taxes included

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Sold byAmazon SenegalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Unlock peak engine power & longevity with every drop!

SILENT STRENGTH - Quiets engine operation by minimizing noise, vibration, and heat under load
COLD START SAVIOR - Eradicates injector stiction for smooth Powerstroke startups
PRECISION TREAT RATE - Custom dosing for oils, gear fluids & hydraulics ensures peak performance
UNIVERSAL ENGINE ALLY - Optimized for all diesel & gasoline engines, boosting anti-wear protection
POWER RESPONSE BOOSTER - Friction reduction delivers sharper throttle response and drivability

Archoil AR9100 is a premium 16oz oil additive designed to eliminate injector stiction in Powerstroke engines and enhance performance across all diesel and gasoline vehicles. It reduces friction, noise, vibration, and heat while extending oil life and protecting engine components, making it a must-have for professionals seeking reliable, smoother cold starts and improved drivability.

Specifications

ASIN	B005UO70ZO
Best Sellers Rank	#3,202 in Automotive ( See Top 100 in Automotive ) #7 in Engine & Oil Fluid Additives
Brand Name	Archoil
Container Type	Jug
Customer Reviews	4.7 4.7 out of 5 stars (5,437)
Global Trade Identification Number	00608819243337
Item Form	Oil
Item Weight	16 ounces
Liquid Volume	16 fluid ounces
Manufacturer	Archoil
Material	Fluid
Model Number	AR9100-16
Number of Items	1
Number of Packs	1
Part Number	FBA_AR9100-16
UPC	608819244198 608819243412 608819243337
Unit Count	16 Fluid Ounces

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