Home Forums Gear Hunting Trucks and Four-Wheel Drives Amsoil is it the real deal?

As per the factory maintenance schedule My 2017 TUndra requires an oil change at 10K intervals. I normally go 5k with full synthetic on my previous vehicles. A guy at work has a Dodge diesel and he goes 25k on his oil changes using Amsoil. He has almost 300k on the engine with no issues and he has sent samples in to get tested.

Honestly I am a little leery of a 10k interval nevermind 25k.

I was always very conservative on oil changes, but I now go 7-8K with synthetic. My Corvette has a oil change program based on miles, rpm, etc, and it would probably go over 10K but I never let it go that far. I change it myself so it is around 35 bucks with a good filter, so cost is not a factor. I give my oil to my buddy at his garage, and he burns it for heat. So really no waste.

Many will tout the idea of UOA - Used oil analysis and generally it's a good idea.

That said - In a previous life I did a ton of M&R work with a major carrier here in the US. We'd run 75,000 miles on class 8 equipment before dropping oil. Filter changes at 25k. EGR motors that are abused quite a bit. If a UOA told me I was good to go, I'd not fret and roll with it.

Over the life of a car - oil isn't a super major expense so changing early for condition isn't the worst thing in the world.

How long do you intend to keep it? Oil change interval affects engine life at the end, not beginning. If you get rid of it at 100k, it might be fine with 1 or 2 changes on syntetic. You would never see the effects. If you want to drve it untill the engine is dead, change that [bleep] often. And remembet, if you want to protect your engine, you need to be dropping good oil out of it, not used up crap.

Most of my vehicle owning life I changed oil every 3,000 miles. Now I have worked up to 5,000 miles or once a year, whichever comes first. It would be hard for me to go 10,000 miles even if the factory said it was okay.

Been using Amsoil in my Duramax since day one and change oil every 15-20K. I am currently at 145K with zero issues of any kind with the motor.
Guess I better sell before it gets to 150K. Laughing

Modern engines and today's synthetic oils are designed for 10,000 mile or more oil changes. Just because we changed the oil every 3K in the 60s and 70s doesn't mean it applies to modern engines and oils. It's cheap and easy to do an oil assay if you don't feel comfortable with it. When is the last time someone had a real problem attributed to lubrication failure?

If you run Amsoil and run it 15-20k between changes just remember that most likely your warranty won't cover any issues since you aren't following the recommendations in the manual...

I don't know which model year Toyota went to the 10K intervals, but my 2013 Tundra is the same, so they switched awhile ago and you're not a guinea pig. Mine came from the factory with 100% synthetic oil and 10K recommended oil change intervals. I'm OK with it, I'm at 55K now and visually the oil is still clear as can be at the 10K intervals. I was surprised at how "thin" the SAE 0W-20 oil is, very different from old style oil. You sure don't need to fool with summer vs winter oil weights anymore.

When I bought my Tacoma back in 2011, I think, some came with synthetic and some with regular motor oil. The ones with synthetic recommended 10,000 miles while the ones with regular was 5,000. When I bought my Tundra in 2015, it came with synthetic but the recommended mileage was 5,000 miles. I don't quite understand why, as everyone that I have talked to had no problems with the 10,000 miles oil change. miles

Flex Fuel Engines are recommended a 5k oil change. I do not have that engine.

How many guys have actually worn out an engine? IME the rest of the vehicle goes to hell before the engine dies. I'd not fret oil. I also on don't care for Scamsoil.

What engines did your 2011 and 2015 models have? My 2013 has the 4.6 L

You mean 4.0 ?

I wouldn't be scared of amsoil every 10k miles.

I like Amsoil products and use a few myself, but I don't use their oil, not because I think it's bad oil - it's not - there are just better alternatives in my opinion. I've used their grease for my ball joints and tie rod ends for the past 230,000 miles. While the original no grease fitting ball joints were replaced, I'm still running the original tie rod ends at 244,000 miles. That's Minnesota miles, snow miles, sub-zero miles.

I use Schaeffer Oil, American's oldest oil company. Delivered right to my door by my sales representative - who has never once in 14 years of buying from him tried to sigh me up as some kind of dealer or other program in order to get a discount. If interested, here's his web site with complete product information.

Click Here.

And I've got 385K on my dodge diesel with shell rotella T dino oil

Amsoil is a scam, I wouldn't use it on a bet.

Flex Fuel or 4x4's are recommended for 5K oil changes, the only tundra that get a 10K change is the 2wd non-flex fuel.

Mobil 1 is cheap and it takes 15 minutes to change the oil and filter. Just do the 5000 mile changes.

No. 2013 4.6 liter V8, 4X4 doublecab. Full synthetic oil from factory. Owners manual recommended oil change schedule every 10,000 miles.