Change Oil Filter Every Second Time? F360

What's the cost differential?

 

Do you want to have clean oil run through a dirty filter?

 

If the new dirty particles need a welcome from the squatters already in the filter then you're on the right track. Otherwise in my humble opinion not adding a fresh filter with fresh oil is only about thrift.

 

This is exactly the idea, that once partially used, a filter performs better by having the biggest pathways already blocked.

 

I think that has as much merit as wearing seatbelts being dangerous because they keep you in a burning car.

Oh, and wearing a motorcycle helmet is more likely to break you neck because of the extra weight in a deceleration.

 

Look at it this way instead. Assume that the filters were designed to filter properly from new and that they don't need the "bigger holes" clogged in order to filter properly. Once the holes get "clogged" the flow is reduced more and more as the oil gets used, once the pressure is too high, the bypass valve opens up. Once the bypass opens, you essentially don't have a filter in your system. In other words, change your filter BEFORE the larger particles clog the filter media. The filter is there to stop the larger particles, and once it does that, it's time to change the filter, not use it to filter the finer particles out. Every oil change is a good time to change the filter as well.
All that said, if you only put a few hundred miles on the car, then change the oil because of time, not mileage, and the oil comes out essentially new looking. I wouldn't have a problem with leaving the filter on there for an additional oil change cycle. I'm sure if you cut it open, it would look brand new under those circumstances.

 

Track miles:: I, personally, have the oil changed after every track weekend (after the drive home). I, personally, don't drive to the track with old oil if that oil has more than 1000 miles on it.

The additive package, and especially the anti-wear part of the addative package has been 'consumed' by the high load operation of the engine durring the track day(s).

When I return from the track, it is obvious that the oil pressure is 5-odd pounds lower (at any RPM) than before. I don't know if this is from the fliter clogging up, or from the oil shearing out. Either way, I don't want this oil attempting to protect my engine any longer.

But it is YOUR car, you get to make the choice.

 

Change all fluids after track day.......filters too.

 

+PhD

 

I always changed the filter with each oil change. But I have never had much opinion either way on leaving the filter on, during an oil change. My opinion change after seeing on a BMW forum I frequent, failures of oil filters that are used for periods much longer than BMW recommends. On a Ferrari, it just is not worth the risk, versus using a fresh filter.

 

Absolutely.

I always change engine oil and filter, transaxle oil and bleed the brakes to remove the dirty cooked brake fluid at the calipers immediately after every track day. Never miss.

Car has done 234,000 Klms and still doesn't use any engine oil. I like to think I must be doing something right.

 

I shall of course have to defer to UroTrash's far superior e-peen and post count and can only meekly point out that the real oil filtration nerds use toilet paper rolls to filter their oil.

It IS interesting on a site where people stress about such minute details to perfectly maintain their Ferraris with the most perfect oil and debates on which working fluid is best for ones tires, that someone comes on and asks a question about improving filtration efficiency by a means other than "bolt on a new part from the Ferrari dealership" and the idea is immediately and comprehensively pissed upon.
The size chart on this page: http://www.kleenoilusa.com/ is an interesting topic for the "thinkers". "Buyers" please don't look at this link as it didn't come from Enzo this way.

 

OK, lets think about this.

Why would the larger passages get blocked first?

Makes no sense at all.

The smaller ones would most likely get blocked causing more flow through the larger holes and also increasing resistance, decreasing flow if taken to the extreme.

 

Ah-ha!
Sorry, I was a bit crabby and off my game early this morning. Apologies for my crass words.
The idea is that the distribution of where the larger particles are caught is random. They don't only go to the smaller passages or the larger ones, so once the filter is somewhat used, many of those large passages are already filled.

P.S.- I have, in actuality, gone the other direction with my old Mercedes and ran the same Mobil 1 for 4 years with an annual filter change and oil analysis. The analysis came back fine every time!

 

You are 100% correct, I think the wording got mixed up with Don XVI, and I continued the poor wording. I think he and I meant to say that the larger particles get caught first, covering more of the useable surface area of the filter.

 

I have read that filters filter better after they have been used a bit, and that if you have to change the oil OR the filter you should change the filter (assuming normal use of the car and synthetic oil) because modern oils can go much longer than the old dino oils.

I have also read that changing the oil and filter too often will accelerate engine wear-probably because of the above and because after a change you are starting the car with no lubrication until the filter fills with oil. Bad.

 

I change the oil and filter in my BB512i every Fall and Spring regardless of miles driven. That being said, unless your 360 is a non-streetlegal track car only, your biggest concern should be not driving enough...1500 miles in over a year?

 

That is the K&N theory with its air filters.

 

How many miles are you driving your car between changes?
When you drive it, do you drive it long enough to get the oil to operating temperature to get out all the water vapor?

Changing properly used synthetic oil too soon is bad for an engine for the reason I stated above.

 

If replacing an oil filter means spending an additional hour with my
hands and tools applied to my car, count me as pro-change every
cycle.

 

id change it every time. Old saying- oil is as clean as the last drop that comes out.

 

True. You should always drive your Ferrari, or any other car/motorcycle for that matter, long enough to get the oil temp up to 100c/212f each time you drive it.