Best oil leak stop products?

[FTTSHO]

Got a 4.3 vortec that is leaking some oil. It’s been leaking oil since I bought it 2 years ago, and the oil leak has not gotten any worse.

I do 3k mile oil changes and I do not notice any oil level dropping on the dipstick, so it’s not a severe oil leak.

The timing cover seal seems to be leaking a little, the oil pan gasket also seems to seep a little oil, and the rear main seal is leaking a little as well. I never get any oil spots on my driveway, so it’s not a huge leak.


I obviously know the best and the most effective way to stop this is to replace the old gaskets, but on my 4x4 blazer, it’s a pita to remove the oil pan. It’s not worth removing the whole front differential and all the oil lines that goes along the pan.

So, what are some good products I could use in the engine to maybe slow down or stop the oil leak? What is the best oil that can stop or slow down minor leaks here and there?

Thanks!

 

[TmanP]

Are you using a high mileage oil already? My first step would be to try something like Maxlife.

 

[JavierH19]

Someone had good luck in stopping a drip using high mileage Pennzoil conventional which home depot sells in store so I'd go there for a jug of 10w-40.

 

[FTTSHO]

Are you using a high mileage oil already? My first step would be to try something like Maxlife.

I’ve used high mileage Mobil 1 before, and it didn’t do anything for me. Would Maxlife be a better choice?

 

[SC Maintenance]

Someone had good luck in stopping a drip using high mileage Pennzoil conventional which home depot sells in store so I'd go there for a jug of 10w-40.

^^ This.

What are you using now? Try a conventional. I like the Havoline 10W-40 in the box, but any conventional would be good for a test before you start trying the snake oil.

 

[BobsArmory]

I have had great luck with Blue Devil stop leak in my daughters junker. Usually available at Walmart and misc auto part stores.

 

[CarlB]

If fixing isn't an option, then I'd rather just top off than try to liquid mechanic.

 

[wlk]

I’ve used high mileage Mobil 1 before, and it didn’t do anything for me. Would Maxlife be a better choice?

I've had good results from red bottle Maxlife slowing/stopping a leak. Never had a mobil hm slow/stop any leak either.
Try LiquiMoly Motor Oil Saver if you want an additive, works well too. Just snagged 12 bottles off Amazon for 20 bucks.