Best oil for high Milage accord?

[Civic slayer]

Hey cb7 tubers I was wondering what would be the best oil to run in my 1993 Honda accord se (275k) the motor and tranny have recently been rebuilt but I just want to take every precaution I can to ensure that it's gonna run better and last longer

[dysfunk]

Doesn't really matter. It's all based on personal preference.

But I use Castrol GTX 10w30 and I have 265k miles.

[Civic slayer]

Ok, but your car seems to like it? Because I've been told to run just about every oil on the market I'm just really OCD about what goes into my car lol

[illinois_erik]

usually whatevers on sale at the parts store, synthetic mix w/ a filter. and ALWAYS substitute one quart with Lucas

[Civic slayer]

What does substituting 1 quart with Lucas do? I've never heard of doing that

[bigpoppa694lyfe]

I wouldn't recommend using any kind of synthetic or synthetic mix oil on a higher mileage engine. The many detergents in them can actually clean "too well" and cause your seals to leak. I used to have a small leak at my front seal and after adding "high mileage" oil several times that small leak doubled in size and I was losing a quart every 2 weeks

[illinois_erik]

What does substituting 1 quart with Lucas do? I've never heard of doing that

Lucas is an oil additive, it comes in quart bottles..dont want to overfill.. I believe in the stuff, I ran it in my jeep and one time I cracked the oil pressure sensor not knowing this I drove 120 miles about 100 of them I didnt have oil..heard a little ticking, fixed the sensor refilled the oil and all was fine

[illinois_erik]

I wouldn't recommend using any kind of synthetic or synthetic mix oil on a higher mileage engine. The many detergents in them can actually clean "too well" and cause your seals to leak. I used to have a small leak at my front seal and after adding "high mileage" oil several times that small leak doubled in size and I was losing a quart every 2 weeks

so whatd you do? start using 50 weight?

[Civic slayer]

I wouldn't recommend using any kind of synthetic or synthetic mix oil on a higher mileage engine. The many detergents in them can actually clean "too well" and cause your seals to leak. I used to have a small leak at my front seal and after adding "high mileage" oil several times that small leak doubled in size and I was losing a quart every 2 weeks

So synthetic blends could hurt my motor? Ive never heard of that I've only heard of them helping the motor And keeping my motor running strong and healthy

[Joey GT-R]

I have heard of some "rumors" of synthetic oils being too good and ruining your seals. I've never used any additives. If I wanna clean out my engine I will put in 100 octane to get a nice burn. I used Royal Purple for the longest but I never noticed any difference. Now that I think about it, I had all my oil leaks when I was using Royal Purple! But anyway, after a couple years I went to Castrol Regular Oil 10W-30. I like to run a little heavier oil so that if there is a leak it doesn't leak as fast.

[GeoffM]

I've used High mileage synthetic blend and full synthetic. Never traditional oil. Always Castrol, with the exception of the one time I had the dealership change it.

Synthetic doesn't eat at your seals. It cleans deposits left by older lesser oils, thus exposing leaks. It doesn't cause them.

Also never use Pennzoil. It contains Paraffin wax.

[Laviathan222]

usually whatevers on sale at the parts store, synthetic mix w/ a filter. and ALWAYS substitute one quart with Lucas

Lucas oil additive works well IMO but others will say different and not to use any additives, as goes with the oil... It's all on preference, I personally buy the cheapest stuff i can get cause i go through a quart every 1000 miles or less... ! im rocking 270K miles on my accord...

[Joey GT-R]

Also never use Pennzoil. It contains Paraffin wax.

Then never get your oil changed at a Honda Dealership....cuz that's what we use buddy!

[Civic slayer]

Thanks for all the help guys I really appreciate it!

[GeoffM]

Then never get your oil changed at a Honda Dealership....cuz that's what we use buddy!

Noted.

Any truth to that?