so when i reach 75k miles do i need to switch from mobil1 full synthetic to high mileage oil or can i still use mobil 1 after 75k miles??

 

You dont have to go to high mileage oil but its recommended because in high mileage oil there are extra additives to help seal worn down piston rings and what not...i still use regular mobil 1 in my b16 that has about 90k on it and its fine but i will eventually switch over to a high mileage oil...it never hurts

 

i switched to synthetic at the miles

 

You can use either one.

 

can you still do some hard running or autox when you use high mileage oil ?

lol high mileage oil sounds like something just to keep an old man/women alive

 

The previous owner of my car used Castrol GTX, then when I bought it at 89K I switched to Mobil1 5w30 fully synthetic. I used that for a little over a year, then switched to Valvoline MaxLife at about 110K because I couldn't get the M1 as cheap as I could before.

Been running MaxLife 5w30 year-round ever since then, for the past 165K+ miles. Car has 276K+ on it and still runs like a top.

So I actually switched from dino to synthetic AFTER 75K, and then switched back to dino again (MaxLife is now a synthetic blend, though), and have never had a single problem.

 

Yes.

 

so its ok to keep putting in mobil 1 past even 100k miles? or should i switch to high mileage oil to be safe?

 

I'm at 141,500+ miles on the odometer and counting.

I am running Mobil 1.

 

dont mean to thread jack but i've been wondering myself.

my da is stock [engine wise] with 250,xxx on the odometer.

what oil brand and viscosity would you guys suggest i use?

 

Amsoil ftw... The true full synthetic.

 

im at 59k on my dc2 right now, just recently changed from a regular oil to mobil 1

 

if the oil youve been using is treating you well, stick to it

 

well brand, i never really paid attention to it as long as its not no name oil.

and viscosity, i use 10w40.

too thick?

i like what i've been hearing about mobil1, i think ill switch to that.

 

10w-40 is thick.
I would switch to 5w-30 or 10w-30 (if you are in a warmer climate). Try it out. If you are burning excessive oil, you should probably do a rebuild...

 

im in socal.

yeah, a rebuild is not an option right now.
lol

so im guessing 10w-30 would be better?

 

if you're in SoCal. I think you should just stick to 5W-30. Honda recommends 5w-30 anyways.

 

even with 250,xxx miles on the odometer??

 

yes, even with that mileage. if you're burning a lot of oil, well, you have 250k miles. 10-40 really isn't going to slow that down. you might start thinking about what your next move with the motor is.

 

Honda also recommends 10w-30 depending on the min temperature of the climate...
It doesn't really matter which one.
5w will probably give a little easier start up.
I'm switching to 0w on my next oil change and we'll see what happens...

 

thanks for the input guys, even though it wasnt my thread.
lol

sorry for hijacking.

 

^thats ok, lol!

well im using 10w-30 i live in socal so i guess thats ok since its warm usually all the time here

 

I use 5w-30 year round with 276K miles on the engine. Since I replaced the leaky oil cooler o-ring last Thanksgiving, I've only been losing maybe 1/2 quart at the MOST in 3K miles.

Note: at operating temperature, 5w-30 and 10w-30 are THE EXACT SAME viscosity. The only difference is 10w is thicker when cold. 80% of engine wear happens during cold start-up, so really an engine should last longer using 5w-30 all the time.

Really the best option would be 0w-30, but that weight is generally expensive and hard to find. However I am considering trying Amsoil's synthetic 0w-30 with their oil filter and using it for their recommended 15K mile/1 year oil drain interval and see how it goes. Right now that would be cheaper than changing my oil 4 times a year with Valvoline MaxLife.

 

do you ever drive that car very hard pat? i know most of the track guys {including myself} burn a quart every 1500 or so with auto-x, weekend drags and all out back road driving.

 

Mostly just commuting to and from work, but I do get on it and redline it 8K rpm on an on-ramp every once in awhile.