Useful

Darren are you a dealer for this oil!!!!

Danny Morris

Penny Lee Bellard

Brian Beckwith Auntie Bun

Yes by far. Smoother idle, better fuel economy. Also run the cetane boost.

I use the Amsoil Diesel Injector Clean + Cetane Boost in warmer months and the Diesel All in One during the winter. I never have fuel or injector issues.

For any that are not sure, the answer is yes. But, the conventional oil will degrade the significant benefits of the synthetic oil. One good quality of adding a quart of AMSOIL to regular oil is the detergency of AMSOIL will help clean the bad stuff accumulated from the original oil. It would be better to use AMSOIL's engine/transmission cleaner for a more complete job. Just follow instructions.

So why would you want syn-blend oil? Full synthetic or regular. (no in-between)

Cody Johnson

You can use anything if it's the same weight... The weight is most important. Some people use 10w30 when the cap says 5w30, but they don't use Amsoil. I don't like mixing, but listen when you use 6 quarts you'll be fine. Just don't forget the cap & filter. The light will come on if something is damaged... I dump brand new oil through my motor, I got guys trying to catch it before it drops.

You would think at first, that the quality of the mix would average between the synthetic (which would the highest quality) and the conventional non-synthetic. That is not the case however. The fact of the matter is that quality of the mix takes on the lowest quality mixed. My short answer to the question is , "If you have the option of all synthetic then use all synthetic."

Conventional is good for daily used vehicles that aren't used in strenuous uses, full synthetic is conventional with additives which is mostly used for newer vehicles and synthetic blend is mostly a blend of additives used in full and conventional mostly used in high mileage vehicles but it's all a matter if personal preference

NO

You can but why would you want to-synthetic is the best, petroleum is the worst but you still need the best synthetic which is Amsoil Signature Series-why use anything less?

We tell everyone off the bat, if you do, you will defeat the purpose of the full effect on a fine product line like AMSOIL. Therefore you will not get accurate results and be not satisfied. Simply get rid of it and start from fresh! Remember you can always go back if you like to. But..... we personally LOVED the better results as a commuter and value. We never back.

No no no! Dont do it

Hell yes, you can slap a grizzly bear ...once

The question was : can you mix oils. The answer is yes. If you have to in an emergency situation.

its fine. better have something in there than nothing. whom ever asks this has no clue how engines work.

Why would you want to

They do it all the time it's called multi weight.. the only problem is that anything's that is added to the molecule chain fins it out or stretches it out, oil companies spend millions of dollars formulating oils, why not benefit from their work?, and run the oil that is designed for your vehicle?, as the clearances grow in their engine from wear and use then I can see using a different package, put mixing your own deal are you a oil analyst?, again take advantage of the oil company's research LOL

It's my understanding that if you do, you will end up with gelatin in your engine.If you switch to synthetic, you have to stay with synthetic.If I'm wrong let me know.

Yes I've done it

This question typically comes up when someone is on a road trip and finds their oil level to be low and they are using full synthetic oil. If you have no other option you can add regular motor oil to the synthetic. This may not be 100% true though so you need to read the label of the synthetic oil that you are using to make sure it says "compatible with conventional oils"

I’m more interested in finding out if the synthetics can really last for 10,000 miles ? I can physically feel my brain start to wig out after I know 4,000 miles have gone bye .

Do you know what full synthetic is? In Germany amsoil (and a lot of others like Motul or Mobil1) is not fully synthetic because of the law.

It doesn’t really matter. What oil you put in your car/truck. I’ve been a mechanic for 45 years and when someone asks me what kind of oil to put in their engine, I answer: NEW. Sure there is oil weight to worry about, but you’re gonna change it every 3-6 months anyway, so your engine won’t have time to gunk up. The only time that is a concern is when you don’t change your oil promptly.

Why would you want to dilute the Great synthetic oil with some oil that won't last as long and then you'll be driving around with half bad oil or you'll be changing it sooner and wasting the synthetic. Choose one or the other just change more often with regular

Negatory

Running in the whole drive train on my 2011 sv frontier v6 4x4, extremely different. I used to know when to shift by sound and vibration wiggh conventional oil, now with all ams oil, I have to watch the tach. The whole truck is so much smoother even shifting the 6 speed man.

Then what is oil sold as blend?