When to Change Oil

[ochoblanco]

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

[Dominic Toretto]

Originally Posted by re-rx7 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.

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

[GTOphil]

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%.

[re-rx7]

Originally Posted by Dominic Toretto 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

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

Originally Posted by GTOphil 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%.

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

[Toby]

Originally Posted by re-rx7 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.

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...

[re-rx7]

Originally Posted by Toby 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!

[Midnight11]

Originally Posted by Toby 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.

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

[Luke]

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.

[Luke]

Originally Posted by Midnight11 8qts there's no way to stay under 50...

Those aren't true synthetic oils either...

[re-rx7]

Originally Posted by Luke 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.

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

[Luke]

Originally Posted by re-rx7 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!

[JDMLOL]

Originally Posted by Luke 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?

[Toby]

Originally Posted by re-rx7 Aint that the fucking truth. Shit, when you need it though your thankful lol!

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

Originally Posted by Midnight11 8qts there's no way to stay under 50...

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

[re-rx7]

Originally Posted by Toby 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.

[2012mustang76123]

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

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