I have a 400xxx mile 92 accord. I was at the autoparts store the other day and saw this engine oil additive with some kind of wax coating repair technology or what not in it. I was wondering if this, or any other "engine treament" product is useful, or even harmful, to an engine this old. Ive used Duralube when i first changed the oil for the car, cant say if i noticed it or not. So any feedback from personal experiences at all? Thanks in advance.

 

Most percentage of them not suggested to the chemicals that can ruin seals/o rings

 

Ran Lucas oil in mine for over a year and it cleaned out the gunk....Not so sure that there are really any helpful oil additives that will actually help bring back old seals or stop blow-by. That is usually only fixed via a rebuild.

 

Depends on what exactly the additive is supposed to do. Most are considered"Snake oils" and are not worth money or can damage an engine. Be warned though, use an engine cleaner VERY cautiously. If your motor has alot of sludge and you suddenly clean it with a concentrate it can ruin the motor because the sludge will suddenly be freed.

I'd start out with a very very low dose.

 

yea im weary of these types of products, however like ghost said lucas does make an excellent PROVEN product..

the best preventative maintenance anyone can do is oil changes every 2500-3000 like clockwork.. seriously.. im sure u know that given the mileage on ur car.

just do a little research on the product before u use it

 

Never trusted those things.

 

high mileage oil has additives.

my front and rear main seals are going so I added Bar's Rear Main Seal product to my accord. I had a good experience with their Head Gasket product.

 

The only product I would add is Sea Foam.
Used it on several vehicles in the intake/oil/fuel and have always noticed positive results. I prefer the liquid in a can, the aerosol can be tricky since you cannot just rely on the engine vacuum to siphon, you need to keep your hand on the button.

I don't care for any 'stop leak' type of additives.
They do one of two things, either add a goo that clogs the leak which cannot be good for any oil/cooling passages, or it causes the old leaky seals to soften and swell. Which may initially seal the leak but the seal itself is now compromised as well as other seals in the engine. They are more susceptible to damage as seals have become swollen and softened. IOTW, the temporary seal fix will lead to more leaks later.

If the seal is leaking it needs to be replaced, that is how you fix a seal.

 

Awesome, thanks for the feedback guys.

 

Yeah what he said....