STP/Engine stop leak

Not Vehicle Specific
Part Number: 66255
Alternate Part Number: ST-1012
In Stock
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Price: $5.99
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Features & Benefits

Rejuvenates seals and gaskets. Over time, normal engine operation can lead to oil leaks. These occur because heat can cause oil seals and gaskets to shrink, dry out and crack.

  • Formulated to stop minor oil leaks
  • Fortifies oil with viscosity enhancers
  • Trusted performance from STP
  • Prevents gasket shrinking, dry-out and cracking
Product Details
Part Number: 66255
Weight: 0.95 lbs
Type: Sealer
Container Type: Plastic bottle
Flash Point (°F): 275
Oil Composition: Mineral
Package Size (oz): 14.5
Pour Point: 0
Recommended Application: Engine Treatment
MSDS Information: Click to View
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    STP/Engine stop leak


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