When to Change Oil
 

Do you go by mileage or by the Oil Life Meter in the car? Mine is at 48% and I am used to changing at around 25-20% but this is a different car so not sure what is recommended. Thanks guys.

-Alex

My oil life meter goes to 5,000 mi. There is a TSB that fixes this and extends it to the factory recommended 10,000 but I prefer to change it at 5k, so that's what I do.

It all depends on driving style, oil type, weight, ect.

3k regardless of type. You can get a full synthetic change with a good filter for under $40 from oreillys if you watch the sale ad. It's cheap insurance to know you always have fresh oil in there..

I do every 5k no matter what oil is used but I just use the motorcraft blend as I work for ford

Your serious?

It all depends on driving style, oil type ( syn, blend,), weight.

Does the OLM factor all of that when providing the percentage?

-Alex

IT does the style and weight but if your using a full synthetic oil nd a brand other then Ford it doesnt.

change at 4500 here while still in warranty.

Gotcha. I plan on using RP anyway which is full synthetic.

Anyone have any recommendations on filters?

-Alex

Ford filters are actually really good. Wix if not. IMO

Yeah check their ads, usually like castrol or Mobil synthetic 5 qt jug and filter usually Bosch for like $32. My truck takes 6 Qts so it's usually around $40 for me. Should be able to stay under $50 for a 5.0 if you work it right. Not always the same brand oil but its always name brand synthetic.

No i mean every 3k miles. I could understand if the car sat for extended periods but for a daily 5k is fine hell 7500k would work as well.

With the Mach it sad every 3k with synthetic, this car has been every 5k with the synthetic blend at the dealer because I get free oil changes for the first 2 years. After that will be amsoil

Pennzoil ult and plat are hard to beat for the price. 3k was in the 70's and 80's oil tech has came along way since then.

I use Amsoil 10w40 sig series and change it RARELY.

Word. When I used to be a distributor for AMSOIL, they advertised like 15,000miles on one change. I think BMW advertises the same.

-Alex

I used Mobil 1 in my GTO but haven't had a chance to change this oil yet. I think the last time I looked I was around 50%.

The only way to really know is to send in a sample.

I really really like Penzoil ULtimate. So does do alot of test.

Hell yeah I would never consider running more then 3k regardless what any test says. $40 every couple months is cheap insurance for piece of mind knowing I have fresh clean oil in my engine. Every engine I have built, treated this way and then torn apart for upgrades or to sell etc always looked cleaner and better then when I put it together. Some consider it throwing away money. I throw away four times that every month for car insurance that I have never once used in the past 10 years...

Aint that the fucking truth. Shit, when you need it though your thankful lol!:happy160:

8qts there's no way to stay under 50...

The thread is on here somewhere (wont be on the shitter long enough to look) but I was going 5k on Motorcraft synthetic blend. I sent it in for analysis and it had a little life left but was time to change. I have RP 5w-30 in now and am going til 7500 when I'll send it in again to get tested.

Those aren't true synthetic oils either...

Yea I remember that thread. Please post up results. Im curious.

Will do. If the factory stuff was looking good I have faith a good synthetic will be just fine to 7500. The car will have a little more abuse this go around though... I'll finally have time to finish the nitrous!

Just out of curiosity, do you simply mail off a small vial of used oil?

If only I had all that money in a savings account. Man I could buy the wife a brand new SUV and pay cash!! Haha


Gotta pay attention and shop for deals. It can be done.. $32 for the 5qt and filter then usually they have the single qt bottles on sale for 6-7 at the same time. Might go over a tick with tax but you will get close. There have been many times I go into our local oreillys and they have the valvoline vr-1 race oil for $2 a qt!!! I grab It up every time I see it!! Still a good deal for synthetic oil. Damn 8 qt mustangs... Haha

Vr1 is some good shit. Zddp and zinc is through the roof! Really only for a engine thats get pissed on and changed regularly. Like 3k miles tops. Value oils you can get under $50 all day for 8qts and filter. Any given day you can go into walmart, oreillys, autozone and they will have a special on a name brand oil.

ya oreillys sells a kit for 12 bucks thru wix they usually have to order it in, which takes 12 hrs.

I used Blackstone Labs, they send you the sample bottles for free, you just mail it in along with a check or payment info. There are plenty of other places that do the same thing. Blackstone doesn't show all of what some of the company's do, I cant remember right off hand what they skipped. It was cheap though and I wanted a base to compare the RP to when the time comes.

Honestly the VR-1 stuff i wouldnt run in a street car. I ran it in my engine after I first put it together, ran that in it regularly and changed it every 2500-3000 miles. When I pulled the engine the first time to make some changes to the heads, cam and intake, I noticed some sludge beginning to form in the oil pan. Most the rest of the engine was fine, just in the bottom of the pan which is where the pickup sits... Really that oil only belongs in a race car that will get the oil changed pretty frequently. BUT it is a fantastic oil for that!! We ran it in our dirt car for a couple years, would change the oil every other weekend, and the engine was perfectly clean and virtually 0 wear was found every season. We also ran mobil 1 a couple years with even better luck then the valvoline!

Amsoil Signature 5w-30!!!