BlueDevil Oil Stop Leak 8 oz - Permanent Engine Oil Leak Sealer
BlueDevil Oil Stop Leak 8 oz - Permanent Engine Oil Leak Sealer
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BlueDevil Oil Stop Leak 8 oz - Permanent Engine Oil Leak Sealer

Pack SizeSingle

Key item features

  • Brand: BlueDevil
  • Easy to Use Pour-N-Go Application
  • Permanently Seals Seeping or Dripping Oil Leaks
  • Repairs and Reconditions Rubber Seals
  • Non-Clogging Formula Safe for Engines
  • Compatible with Gasoline and Diesel Engines
Current price is $19.97$2.50/oz
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Customer ratings & reviews

4.1 out of 5 stars
stars
253 ratings97 reviews
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Reviews summary

Neutral

  • : Can be effective, but may not work for all users or completely eliminate smaller leaks.
  • : Can be effective for small leaks, but may struggle with larger ones.
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Showing 1-3 of 97 reviews

Oct 29, 2016
Rick
Walmart Associate
5 out of 5 stars review

BlueDevil Oil Stop Leak

I had a very small oil leak. I first noticed it on my garage floor. Then it was found to be in my cooling system. I needed to keep my old Subaru 2000 Outback with 275000 miles on it running without doing costly repairs. I had used the BlueDevil hydraulic stop leak in my ZTR lawn mower which had a major leak, and I was amassed that it stopped. So I thought I would try the BlueDevil Oil Stop Leak. You guess it. The leak is gone. This stuff is amassing. Highly recommended.

Helpful?39ZHXSA202VN106370402
Dec 5, 2025
Teddy
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

used on 2005 silverado with over 300K miles along with blue devil rear main seal stop leak. still has a slight leak, but noticeably helped. Definitely exceeded my expectations

Helpful?39ZHXSA202VN106370402
Jan 7, 2026
shannon
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

skeptical at first. stopped leak on sbc at real main. used on a low mileage 350 but had sit for 20 years.

Helpful?39ZHXSA202VN106370402