Red Line Limited-Slip Friction Modifier

Chatter in your differential? An ounce or two of the Red Line Limited Slip Friction Modifier might fix it.

Availability: In stock
SKU
redline-80301 DEFAULT
As low as £14.96 £12.47 Regular Price £16.62
FREE UK DELIVERY ON ORDERS OVER £15 inc VAT
Red Line
  • Compatible with both petroleum and synthetic gear oils
  • Reduces break-in temps as much as 50°F
  • Add 1oz at a time to clutch-type limited slip or posi-traction units to eliminate chatter

These products contain the extreme pressure additives necessary for ultimate protection road cars and racing vehicles, as well as friction modifiers for proper limited-slip operation

  • Fully-synthetic formulas created from polyol ester base stocks, offer excellent lubrication under extreme conditions
  • High viscosity-index (VI) to provide relatively constant viscosity and film thickness with varying temperature change
  • Ester base stocks and friction modifiers provide additional slipperiness to lower operating temperatures by reducing the sliding friction in hypoid gears
  • Superior shear stability and reduced oxidation compared to other synthetics and conventional gear oils
  • Exceed API GL-5 specifications
  • Engineered to provide the highest degree of protection and improvement of differential efficiency for better mileage, longer drain intervals, and less wear

OEM Compatibility

Limited-slip or Positraction units use plates or clutches to provide the proper amount of lock-up to the differential. Slippery lubricants are required to prevent chatter, but too much slipperiness causes excess wheel spin, reducing traction.
For perfect traction, use Red Line 75W90NS and add the Red Line Limited-Slip Differential Friction-Modifier / Break-In Additive until the chatter disappears.

Satisfies performance requirements of GM 1052358, Ford M2C118-A, 19B546-MA, Chrysler 4318060 and most imports.

Recommended Dosage:

  • Use 4% for prevention of limited slip chatter in broken-in units (typical one 4 oz. bottle) or 4 to 8% for the break-in of new differentials.

Red Line Limited-Slip Differential Friction-Modifier / Break-In Additive will significantly reduce the friction during break-in of differentials. High temperatures encountered in break-in can destroy the hardening of the gear teeth causing rapid wear of the softened gears. This additive can reduce the break-in temperatures by as much as 50°F, improving break-in conditions. Compatible with petroleum or synthetic gear oils. Red Line Gear Oils already contain this additive (except the NS).

In non-limited-slip racing differentials and quick-change units using the Red Line ShockProof Gear Oils an additional 3 to 6% Red Line Limited-Slip Differential Friction-Modifier / Break-In Additive is recommended.

Free UK Mainland Shipping for all orders over £15 (inc VAT)

We offer a variety of shipping options to suit your needs and depending on the hazard class of the product and your location. Please note that we don't make any money from our shipping fees.

Depending of the order value and location we cover the shipping cost in full or at least contribute favourably towards the cost.

We strive to ship UK orders the same day providing they are received before 14:00pm and international orders providing they are received before 12:00pm.

To calculate a shipping cost just add the products you require to the cart and follow the first part of the checkout process and it will provide the available options and respective costs.

Guaranteed Damage and Leak Free Delivery or We Will Replace For Free

Great care is needed when packing fluids and very few distributors that specialise in mail order of these types of products are dedicated to the same level of care as us. Our professional and thorough packing is the best in the business and ensures that your order arrives safely. We use strong, high quality, custom made boxes to enable sufficient packing material around each item and thus offer optimum protection against postal damage. And, if any order is damaged, we'll replace it without question. 

DHL Parcels UK Delivery Zones

Zone A Zone B Zone C - £8.00 Zone D - £10.00
Englands & Wales Scotland Highlands / Northern Ireland Offshore islands
AL CM EC HX MK RG SS WC  DD  AB31 to AB38  HS
B CO EN IG N RH ST WD  DG  AB40 to AB56  IV41 to IV49
BA CR EX IP NE RM SW WF  EH  IV1 to IV28  IV51 IV55 & IV 56
BB CT FY KT NG S SY WN  FK  IV30 to IV32  KA27 & KA 28
BD CV GL L NN SA TA WR  G  IV36 to IV40  KW15 to KW17 
BH CW GR LA NP SE TF WS  KA (except KA4 & KA28)  IV52 to IV54  PA20
BL DA GU LD NR SG TN WV  KY  IV63  PA41 to PA49
BN DE HA LE NW SK TQ YO  ML  KW1 to KW14  PA60 to PA78
BR DH HD LL OL SL TR*    TD  PA21 to PA38  PH42 to PH44 
BS DL HG LN OX SM TS    AB1 to AB16  PH4 to PH41   ZE 
CA DN HM LS PE SN TW    AB21 to AB25  PH49 to PH50  Channel Islands
CB DT HP LU PL SO UB    AB30  BT - Northern Ireland   IM - Isle of Man
CF DY HR M PO* SP W    AB39    JE - Jersey - DHL Courier Only
CH E HU ME PR SR WA    PA1 to PA19    GY - DHL Courier Only

*PO30 to PO41 - Isle of Wight - £16.00
*TR21 & TR25 - Isle of Scilly - £16.00

       PH1 to PH3    
           

It is very important to us that our products perform exactly as described and that you are entirely satisfied with your purchase. We stand by all of our products to the degree that we will refund you in full if you are not entirely satisfied.  Even if a particular product or service doesn't work for you and we refund your money in full, we will still go out of our away to help diagnose any underlying issue or fault, free of charge.

Money Back Guarantee

Please inform us of any damaged or defective items within 60 days of delivery and we will replace the item FOC or offer a full refund at our discretion. You may be required to return the damaged or defective item(s). This does not affect the manufacturer’s warranty where it applies.

Similarly, if an order is incorrect in anyway, please notify us within 60 days of purchase. We will endeavour to correct your order as soon as we can. You may be required to return incorrect order items.

If, for any other reason, you wish to return an item then please call us beforehand stating the reason within 60 days of receiving your order. Per our no-quibble money back guarantee, we will provide a refund in full for a single item if you are in any way dissatisfied, even if it has been used. Please note that refunds for opened/used products are limited to one item.

Any additional ordered items are still eligible for a refund but they must be returned unopened, in the original packaging and in the condition they were sent.  A refund will be issued minus the original delivery charge.

Please call or email us for authorisation before returning any items. Refunds will only be credited to the same credit or debit card originally used to purchase the goods.  Again, you will not be asked to jump through any hoops.  We will process the refund and then help diagnose any underlying issue or fault, free of charge.

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