So can I use this if I have a noisy diff but a non limited slip?

No, for a noisy diff I would look at a Lucas oil...after you have checked to make sure the noise isn't being caused by the bad news fairy. Take it to tech and have them check the gears. Or crack it open yourself and look for metal shavings.

does my 2005 4.6L lincoln town car use this? cant find any info

IF your Town Car has a limited slip differential then this fluid is indeed the proper additive if you are going to be renewing the gear oil in your T C.

can this be used on my 1997 awd mercury mountaineer

This is used for a clutch type rear end?

must I change differential oil before adding or can I add to oil already in it?

You could add it to the oil that's already in there but you may need to remove some oil to make room. BTW, Diff oil should be changed at 100K.

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純正フォードフルード XL-3 フリクションモディファイア添加剤 - 4オンス

Product ID: 782009884

🔧Reduces gear noise

⚙️Optimized for limited-slip diffs

🛢️4 oz precision additive

B/.161

Duties & taxes included

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Sold byAmazon PanamaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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TrustScore 4.5 | 7,300+ reviews

B/.161

Duties & taxes included

In stock

Sold byAmazon PanamaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Panama.

Secure transaction

Description

⚙️ Drive Quiet, Drive Confident: The Secret to a Smoother Gear Shift

EASY INTEGRATION - Simply add to your lubricant following your vehicle’s owner guide for hassle-free use.
SILENCE THE DRIVE - Effectively cuts down chattering and hypoid gear noise for a smoother ride.
OEM TRUSTED FORMULA - Genuine Motorcraft additive ensures compatibility and reliability.
PROVEN SATISFACTION - Rated 4.8 stars by thousands, a must-have for discerning car enthusiasts.
TAILORED FOR LIMITED SLIP - Specifically engineered for limited-slip differentials to maximize performance.

The Motorcraft XL-3 Friction Modifier Additive is a 4-ounce, OEM-approved formula designed to reduce chattering and noise in limited-slip differentials. Trusted by thousands with a 4.8-star rating, it enhances gear performance by lowering surface friction, ensuring a quieter, smoother driving experience.

Specifications

ASIN	B000NU5LP6
Amazon.co.jp での取り扱い開始日	2013/9/15
おすすめ度	4.8 5つ星のうち4.8 (3,736) var
ブランド	Motorcraft
メーカー	Rain-X
メーカーにより製造中止になりました	いいえ
モデル名	XL-3
商品の重量	141 g
商品モデル番号	XL-3
外装状況	塗ってある
純正品番	0, XL-3, XL3

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