September 1st, 2010 
admin Lucas 10278 Engine Oil Stop Leak – 32 oz.
- Compatible with petroleum, semi-synthetic and full synthetic motor oils
- Renews worn seals with no risk of damage or eventual corrosion
- Stops seal leaks in engine
All new formulation of Lucas additives and very specific base stocks designed to stop seal leaks in engines. Compatible with petroleum, semi-synthetic and full synthetic motor oils. Renews worn seals with no risk of damage or eventual corrosion.
Rating: 
(out of 1 reviews)
Price: $ 9.46
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Review by C. Pica for Lucas 10278 Engine Oil Stop Leak – 32 oz.
Rating:
My ’95 Nissan was leaking oil (not much) and it was driving me nuts seeing spots on my driveway every time I pulled in or out of my driveway. I checked its underside where the leak was coming from – it was by the timing belt cover. Now this is a major undertaking and expensive if you would have it repair by a mechanic.
Bought 3 qrts of Castrol 10/30W, Fram Extra Guard Oil Filter, and a quart of Lucas Engine Oil Stop Leak. Drained the old oil and replaced the old oil filter. Put 2 qrts of the Castrol first then 1/2 of the Lucas EOSL. The remaining 1 qrt of Castrol I put last. My car takes 3 1/2 qrts of oil.
The first week – there were still some leak but by the middle of third week, the leak was gone. I know this is just a band-aid solution, but given enough time and money I’ll have to get that leak fixed in a proper way.
Some mechanics stand by this additive and some car aficionados hate this product like a plague. Just use it sparingly, meaning not too much, just the right proportion or ratio between this and your oil. Otherwise “Foaming” would result in your engine oil and you don’t want that to happen. Your oil seals would swell and bloat too if you over use this additive and more oil leaks would spring up pretty soon.