Travler

If I run Mobile 1 5W30 in my C5 as many of you have recommended (and thank you), what should be the oil change interval in miles and/or time? Most of my driving is open road trips. Would the oil filter change interval be the same?

moserbe

Your DIC will give you the percentage of oil life left. I go by the DIC or once a year, whichever comes first.

larrybee

i run 0w40 mobil 1 and mobil 1 filter. i run about 3 to 4k a year. i change oil and filter every April.

Vetteman Jack

That's how I decide when to change mine.

Patman

Unless the engine is heavily modified, it's a waste of time and money to change the oil any sooner than the oil life monitor tells you to do it.

STALION

Didn't we just go through this last week in another thread? And then a couple of weeks prior to that? And then a few more weeks before that, etc....

DAN01

Give the guy some slack. If you bothered to take a look when he joined the forum it was April 2010 so I doubt he was here last week or 2 weeks before that or 2 weeks before that and so on.

STALION

Wasn't trying to be an a$$ with my last post. I should have topped it off with a or possibly a :o, just a little comical when you see it several times.

As far as oil change interval, like others have said, the DIC is a pretty good indication of when you should change your oil. If your a track guy and beat on the vette more often then I would consider changing the oil sooner then what DIC indicates, other then that it's status quo!

steve8

Once/year for me at aprox 5k miles.
If you change the oil, change the filter.

1996Z15

I use Royal Purple and my mechanic told me that they recommend changing the oil every 12,000 miles with filter changes every 5,000. They top the engine off with fresh Royal Purple if the level drops.
I use the DIC as a guide but try to stick with the 5,000 mile check up.

Tom/99

Everyone has their own idea of when the oil needs to be changed.

Higgs Boson

Synthetic does not extend oil change intervals, it only lubes/protects the engine better over the interval period. It still gets contaminated with fuel, moisture, dirt, etc just like regular oil. Whatever your habits are with regular, keep it with synthetic (unless your habits are bad).

Sinister-one

If it bothers you to answer the question or give a reply, then stay out of the thread.

What difference does it matter how many times this "type" of question has been asked ?

That's why some if not most of use are here on the board, to HELP a fellow Corvette brothers out !




And to the OP, I change my oil when the DIC comes on.

saxtech

jrose7004

I go 1 year or 10,000 miles whichever is first.

Remo

Follow the "oil life" readings on the DIC. But if you're like most of us, and put very few miles on the car, then you'll have to change it once each year.
Remo

04 commemorative

In the vette with 18K I change it once a year
In the 96 Maxima SE with 40K I change it once a year
In the 2000 Blazer with 207K every 6 K
I even used it in my snow blower this winter...
All use Mobil 1

madmatt9471

I run ENEOS 5W40 - Change evry 4000 to 5000

YES! Change the filter "EVERY" time you do your oil change

Thanks,Matt

itzza427

Actually it does compared to regular dyno oil. It has a superior additive package that will allow for longer(within reason) intervals and handles the contaminants you mentioned. Evil Twin,,a member here was an engineer that was in on developing the program for the Oil Life Monitor system,,and ALL the parameters you mentioned and many more were factored in. Temp,length of drives RPM levels many more are part of the program. Even "beating" on it as mentioned earlier is factored in. Taking your car to a track event will dramatically reduce the numbers on the OLM!! One member had a fresh change and lost 50% in a few hundred miles on a track day event. I drive close to 10K a year,,with a lot of city and cold weather driving,,and following the OLM I change 2 to 3 times a year!! A trip to the strip on a test and tune night with about 5-6 passes will knock off several % of oil life. The OLM will give you solid info. E.T. posted that around 01(if I call correctly) the parameters were raised a bit as they discovered through testing that the had been overly conservative on the earlier models!! Just some info learned here and from E.T.!!

srs244