Mobil 1 Extended Performance - How Long?

[FloatingBrick]

Long Story-Short, I usually buy MC filters, decided to try a Pure One, AAP was out of stock, gave me the Mobil 1 for $5.00.

I run 6-8k OCIs (5w-20 SynPower, 2000 Taurus, 3.0 ohv, 170k on the odo) and it usually takes me 9 to 12 months to rack up the miles. I know I got a good deal on this filter, and I hate to sound cheap, but it is supposed to be Extended Performance - can I run it for 2 OCIs?

It just seems a waste to change out an expensive filter after the same interval I can get with the cheaper MC.

 

[HTSS_TR]

I use the low price, actually free after rebate, Pep Boys house brand Proline oil filter for 2 OCI of 6-7k/6mo with dino in '94 LS400. I had been using oil filter for up to 15k/12mo for many years in that car without any engine problem.

 

[yaris0128]

Id run it for any interval. Cant think of to many better filters than the M1. Throw it away on your next oci though. No sense in using a filter again. Especially after a year. Dont be cheap. I cant imagine oil changes huring your wallet if you only do one a year.

 

[901Memphis]

You can grab the FL400s filters for under $4 at walmart and they would easily handle your 6-8k intervals, plus they have the correct location of the bypass valve designed for your engine which the mobil 1 does not.

You could possibly use the Mobil 1 filter for 2 oil changes but its not something i would be willing to do with such a length of time on the filter. If it was less than 6 months and about 5-6k miles on each oil fill it would be less of a problem i would think, but that much time (up to 2 years) on the filter could be cause for concern.

 

[Corvette Owner]

On many old cars, they said to replace the oil filter every other oil change, BUT that was when an OCI was only 3,000 miles.

I agree, change it out after one year OR your normal OCI, cheap protection.

 

[tig1]

I have used Mobil 1 filters ever since they came out in the 90s with 10K OCIs with no problems at all. A friend is doing 15K OCIs with his 03 Windstar and Mobil 1 5w30 Extended Protection. We cut one filter apart and it was fine. As for using the same oil filter through 2 OC cycles, I wouldn't do it because I don't like the idea of putting in 4 Qts of new oil with .2-.5 qts of old, especially for the length of time you are talking about.

 

[GenSan]

It's rated for 15,000 miles so I would think you should be OK for two oil changes using the same filter.

 

[yaris0128]

Originally Posted By: tig1
I have used Mobil 1 filters ever since they came out in the 90s with 10K OCIs with no problems at all. A friend is doing 15K OCIs with his 03 Windstar and Mobil 1 5w30 Extended Protection. We cut one filter apart and it was fine. As for using the same oil filter through 2 OC cycles, I wouldn't do it because I don't like the idea of putting in 4 Qts of new oil with .2-.5 qts of old, especially for the length of time you are talking about.


I suppose you could let the filter drain out for a while too? That could help that old oil problem but why bother?

 

[FloatingBrick]

I'm thinking about changing the oil tomorrow. If I do, I'll put on the Mobil filter and worry about leaving it on for 2 OCIs in a year or so.

 

[sangyup81]

I've done 2 OCs of 7.5k miles each on those. As long as your car is mechanically sound, it should be able to do the job for 15k miles

 

[flatlandtacoma]

Originally Posted By: tig1
I wouldn't do it because I don't like the idea of putting in 4 Qts of new oil with .2-.5 qts of old,


Typically .5 to 1.5 qts of old oil (depending on the engine) are left behind every oil change - even with a filter change, which dwarfs the typical .2-.3 quarts left in the filter.

 

[mjoekingz28]

Originally Posted By: flatlandtacoma
Originally Posted By: tig1
I wouldn't do it because I don't like the idea of putting in 4 Qts of new oil with .2-.5 qts of old,


Typically .5 to 1.5 qts of old oil (depending on the engine) are left behind every oil change - even with a filter change, which dwarfs the typical .2-.3 quarts left in the filter.


Some feel they must get every last drop out of the sump in order for it to be a job well done. That does not worry me like it used to. If I have a 3.2 quart sump, I'll do a step further and do a cold oil change or not let it drain all the way to retain that fifth. The dipstick still shows fresh, brand new oil.

 

[Dave Hess]

When Walmart had them on clearance I bought two M1-104 filters for $4 each. I put one on my dad's car and it been there for 2.5 years, I change the oil on his car every 6 months.

Having 1/2 quart to 1 quart of old oil will not hurt the engine as long as the engine has clean fresh oil added every so often.