How often do you change your oil?

How often do you change your oil and what kind of oil do you use?

Just interested to know. My coworkers think I change my oil to often at 3000 mile intervals.

5,000 miles on the P71 and GP GT with Royal Purple. ~2500 on the RX-7 with 10W30 Valvoline, but it doesn't move unless it's going to the races (150+ autocross passes on it already...) so it's an exception.

5,000 miles, I am using Castrol SLX synthetic on the Dodges and NAPA Gold filters.

3000 on the street vehicles.

3000 miles on Castrol GTX on all the vehicles.

In the TDI: every 10K with VW rated synthetic (usually Castrol). Some guys on TDIClub who have cheap access to oil-testing will go much longer, only changing the filter at 10K (they're kinda weird like that...).

In the Cummins... once a year, whether the mileage calls for it or not with whatever cheap diesel-rated, 15w40 dino oil I can find (it takes 3 gallons of oil...). I currently have a case (6 gallons) of Rotella.

The Spitfire sort of changes its oil all by itself (it IS British, after all...) but I do a traditional oil & filter change once a year with some type of brand-name, dino 20w50.

3000miles for the toyota pickup using 10w-30.

3500miles on the benz using semi-synth 10w-40 lubromoly

1000-1500miles on the bike with whatever 20w-50 is cheap, currently using walmart brand. I change it pretty frequently because I have either blow by or something that cooks and burns up the oil.

5000 in the civc dx( which is 2500 less than factory recommendations) Whatever is cheap and semi decent.. Usually a Wix, Napa gold, or other non-Fram filter.

think with your dip stick Jimmy!!

Every 5K in the RX8 with Castrol GTX.

Roughly 20,000 km on my truck, and 12-14,000 on the wifes car. Thats about when the oil life system tells me to. Been doing it that way for 10yrs. Still have the wifes 2.4 TC (Q4) with a quarter million km on it, and it got it once a yr, roughly 24,000 km since 2000. I have never had an engine failure.

My 83 Celica self changes through a bad oil pan gasket My DP MR2 gets fresh Castrol Syntec once a year. CRF230L every 2k.

Once a year, if it needs it or not. 0w-40 Mobil 1.

When idrive tells me to - roughly 13-15k miles. I really ought to do a mid-interval change but the oil looks really good still and I'm 7k miles since the last change, and it's not as easy on the big 7 as it was on my old 3, which I did every 7500 miles. BMW branded synthetic (Castrol) is what I use - it's cheaper than anything else synthetic with the BMWCCA discount.

Now, the real question is the other fluids: trans, diff, brake, power steering. My 7 has crossed the 60k mile threshold so I really need to change the diff and trans - screw the "lifetime fill" thing, and the 100k mile interval that replaced it is way too long in my book too. I should have done them both at 50k miles. The brake fluid gets flushed every 2 years, and I usually will empty and refill the PS reservoir at the same time to at least put some fresh fluid into that system.

I usually do every 5000 miles on the E46 and the TSX, with 5w30 Mobil1, which translates to about twice a year for the Bimmer and less than once a year for the Acura, though I do it at least once a year no matter what the mileage. I generally use either NAPA or OEM filters. I don't get nervous if it goes to 6-7k before I get to it as long as the level is good.

On the GF8 Impreza, I'm getting ready to change the oil at about 1500 miles. It had 100,000 miles of very irregular oil changes from the PO so I am running a bunch of WalMart Rotella-knockoff through it to try and clean out the crap.

Somewhere around 5k on the Passat (Mobil 1), 3k on the dot for the wife's New Beetle (Mobil 1), every other year on the '69 Olds (car is driven less than 100 miles a year tops), and whenever I get around to it on the Sunfire (Mobil 1).

Truck is done off the OLM, which is somewhere between 8-9k miles with M1 and Delco filter. Elantra is 6k (anything farther than 6500 and it burns it, very odd) with OEM Filter/M1. Accent is about to get changed back to dino oil since it's burnign a qt every 1500 miles... but had been 6k on M1 and OEM Filter.

Swift, well every head swap. I'll likely keep it to around 2500-3000miles on M1.

I change the oil in my Civic every 3000 miles with either Royal Purple or Castrol High Mileage and a Fram High Mileage filter.

i go 5000 miles on the MS3, which is the "severe duty" interval recommendation in the manual, but a lot of people on mazdaspeedforums change every 2500-3000 miles due to fuel dilution. some folks think the dilution gets so bad that its causing the fuel-ized oil to light off in the oil control rings, and melt the piston skirts. pretty wierd stuff.

My hardbody truck and wife's Maxima I used to do every 3,000 miles. I am stretching it out to 5,000 now with the high price of oil. The truck has 340k miles and the Maixam 194k. Neither uses any oil, but the truck engine was rebuilt about 15k ago. I usually use Valvoline 5w-30 or 10w-30.

The Spitfire gets it about once a year... Castrol 20w-50.

More importantly, I use either Nissan or Wix filters.

Looks like a lot of 5000 mile changes. I've been thinking about stretching from 3000 to 5000 miles. The cost of a quart of oil seems to be a lot more than it used to be.

4k in the VFR, Shell Rotella T 15w40 semi-synth mixed with conventional motorcycle oil, usually a 20w50 (next round I got back to Suzuki, seemed to give me the nicest shift quality). Purolator Gold Line filter "meant" for a Civic, got a case of them cheap a while back.

5k in my Olds Intrigue, conventional Mobile 10w30 and usually a Wix filter.

95 Inpreza twice a yr.. Castrol extended life 5 w 30 (220k no oil burning

01 Integra 3-5k.. Amsoil 5 w 30 66k former auto-x car

91 CRX (STS/CSP) 2-3k Amsoil 5 w 30 95k

coolant: Impreza every 2 yrs, Integra every 2 yrs (now), CRX every yr brake fluid: Impreza every 2 yrs, Integra every 2 yrs, CRX at least every yr depending on how many track days atf: impreza every 30k

Cobra - every 3k miles with Mobil1 5w30, more often during autocross season.

Celica - every 3k miles with Castrol GTX 5w30, though I've seen a lot of guys swear up and down to go to 15w40, and I'll probably try that next oilchange.

Bronco - every 3k miles with whatever cheap 10w30 Costco happens to be carrying at the time (usually Chevron), unless I have enough random bottles of other stuff, then it gets that.

When the Camry is back up and running, it'll get Castrol GTX every 3k miles, too.

Once a year on both my ZX2 and my Liberty. App. 8/9K miles on each. Amsoil all the way.