5000 mile interval for oil change??

Really!! Ive got an 2010 V6 with 12000 miles on it. Ive been changing the oil in it every 3000 miles. I'm old school. Is that over kill? How many of you go 5000 miles between changes. Decisions...

 

i did the same. until i switched to mobil1 synthetic now i go to around 4500

 

I do every 5k and it's way to soon. I also run Castrol GTX Syntec with a new K&N oil filter every change. I could easily go 8k+

 

I would do it every 3k but the previous owner bought the prepaid service plan so I get free oil changes every 5K.
Which includes all scheduled maintenance I believe.

 

The manual says every 5000 miles so I just go with that. I use dino oil but if I was using synthetic the change interval would be longer.

 

not till the light comes on for me. it also depends on how you drive too

 

Mobil 1 synthetic, Purolator Filter; 7500 mi/change.

 

Thanks for the input. I should have used the SEARCH engine. Then I wouldn't be wasting your time. Remember when Mobile 1 came out, 1989? Didn't they claim a 12000 mile interval?

 

When it first came out I think it was 25,000 miles; now they say to follow the vehicle's recommended oil change frequency.

Royal Purple says you can wait 2-3x longer than suggested based on driving conditions. That would be a 10k-15k change frequency.

 

Amsoil every 25,000. Filters every 7,500. Works for me.

 

do you do analysis?

 

Isn't there a time interval as well? Like 5 months or 5000 miles, whichever comes first?

 

8K miles intervals here with Royal Purple 5w-20. I could easily go to 10K+ and still have some room to spare on the TBN, but I figure 8K makes me feel good so I go ahead and change it early.

 

I used to a 4-5000 change, but think I will wait a bit longer and go 7,500. Tires used to be the same. Balance and rotate every 3000. Now Costco recommends 7500. Will be easier for me to remember. Tires and oil every 7500, then my rear diff every 15000.

Mobil1 full syn...

 

I purchased the truck new and changed the oil at 2,500 miles with pure dino, then again at 5,000 with dino, then Amsoil at 10k. Then I went to 35k before another oil change after reading on the Mustang forums (have an 07) about guys going 25k on Amsoil and doing analysis each time with Blackstone Labs. They were showing no engine wear at all. So I'm going with it. I'm out of country and when I get to 75k miles (which will be in Sept.) I'm sending it off for Blackstone Analysis. At each oil change, I've seen no deposits or particles, no sludge, nothing. I know guys freak when they hear this, but I've built 2 engines and I own 5 cars. My last set of cars all went over the 200k mile mark (86 Toyota 22RE 4x4 and 93 Isuzu Rode) and I was doing the same thing, Amsoil every 25k miles. When I sold them, they were still running strong. I'm anal about maintenance, torque specs., etc. and do all my own work. I'll post the results of the Blackstone Labs in a couple months to see where the Tacoma stands.

 

And of course you know that doesnt mean anything, right? That's why the UOA is so important.

I'm sure Amsoil is up to it, but I'd suggest 25k is a bit much with out a baseline UOA and a couple intermediate ones to know how your engine wears and to gauge how well the oil's additive package is holding up with your specific service conditions.

You can't 'see' the build-up of acids, and diminishing TBN as a result, from things as simple as a tiny coolant leakage.

It would make me nervous, and I'm committed to 10K OCI's with M1. Now I use ONLY 0W30 or 0W40 oils since I learned they have much stronger addie packs with more TBN headroom! They seem to be designed for European market use, where they have been doing condition-based oil servicing for a decade or more. They generally go 15-20K miles between changes, depending on useage conditions as reported by the car's computer when using this grade of oil.

 

Yes I know I cannot see things that an analysis will pick up. I'm saying there haven't been any "oh this sucks" to the naked eye. I'm sure you've drained rear gear oil after new gears have been installed and passed their break in period...looks like liquid etch-a-sketch. Literally. Then after a few changes, and longer break in, it's coming out clear. I'm just saying I trust in Amsoils additives ability. I'll pull an analysis next time I'm home to see what Blackstone Labs says. I don't trust Oil Analyzers, Inc. since they are actually owned by Amsoil. I'll let you guys know what it says.

 

plus 1 on this....amsoil sig series and a mann filter......i have been doing this with an eao on my nissan altima and changing it out once a year since 2002!! my oil analysis is draining one year old oil and rubbing it between my fingers and saying to myself "Oh hell i coulda gone another year." my 06 taco filter location allows me to keep the oil in for one year thanks toyota! oh....way better gas mileage with 0-30

 

My Tacoma is still under warranty so I change oil & filter at 5000 miles. My Celica has 128K miles; I it's change oil at 10000 miles using Mobil One 10W-30 with a filter change at 5000. The 3000 mile oil change was applicable 50 years ago when oil wasn't as good as it is now. If I could send my oil out for analysis I'd adjust the change interval depending on the findings.

 

I know people are awful careful about this...but has anyone ever had a problem with Toyota disallowing warranty coverage because they didn't follow the oil change interval closely?

I know VW owners have...but VW has also had a rash of engine problems in the recent past and VW dealers are probably the most difficult in the world when it comes to finding reasons to disallow warranty coverage.

I also remember reading where some Toyota owners have had communications with Toyota about using full-synth oils and they'd allow OCI's out to 10K miles. But seems to me, Toyota'd have to offer a standard for what constitutes a good enough oil. Like VW does with their VW502 standard.