Diesel Oil in gas motor?

[CyberSniper]

Mobil 1 is one of the cleanest oils out there. While there are better oils out there, Mobil 1 is not a bad motor oil. For dollar spent, I believe Mobil 1 has the rest beat by a fair margin (unless you can find Syntec for cheaper than Mobil 1 and that rarely happens).

I've never been impressed with Amsoil... nor Lucas.

If you're going to buy an expensive oil, buy Redline or Royal Purple.

 

[rjfguitar]

I had an amsoil rep tell me that mobil1 sludged up motors. I proceeded to tell him that I had been working on cars for 15 years and had never seen anything but clean engines when run with mobil1. I asked for a picture and he confessed that " It's what I was told"

While Amsoil is slightly cleaner than Mobile 1, mobile definantly doesn't sludge up motors, it's a VERY clean oil, just like most synthetic lines.

 

[rjfguitar]

I've never been impressed with Amsoil... nor Lucas.

If you're going to buy an expensive oil, buy Redline or Royal Purple.

Amsoil is right there, if not better, but definantly not outdone by those two brands. Amsoil has a better reputation also. The big thing is all the different applications and types of oil that Amsoil produces. They produce oil specifically designed for racing, all the way to agriculture. Neither Royal or Redline has the broad range of products Amsoil carries.

Regardless if someone goes with either of the three brands, they will have the best oil on the market, unless it's on a unique piece of equipment that requires special additives or viscosities, where Amsoil will have it covered and the other two don't.

 

[Pookster]

I dont doubt that amsoil is good oil. I just think people are sometimes offended, if not misinformed by dealers who start making wild claims.

Maybe rotella is overkill- Maybe Amsoil is overkill as well. Even if the oil is superior, most engines need some overhaul sooner or later.

THe question is, is the extra money you spend for added protection (or added performance) worth it, if the time to rebuild is a certain amount.

I dont know how much amsoil is. I know how much Mobil 1 is, how much rotella, and rotella T is, how much delo is, and how much delvac is. I personally dont like mystery pricing.

 

[rjfguitar]

I dont doubt that amsoil is good oil. I just think people are sometimes offended, if not misinformed by dealers who start making wild claims.

Maybe rotella is overkill- Maybe Amsoil is overkill as well. Even if the oil is superior, most engines need some overhaul sooner or later.

THe question is, is the extra money you spend for added protection (or added performance) worth it, if the time to rebuild is a certain amount.

I dont know how much amsoil is. I know how much Mobil 1 is, how much rotella, and rotella T is, how much delo is, and how much delvac is. I personally dont like mystery pricing.

Yes, I would agree. A dealer needs to give good advise and not claim stupid stuff that is false.

Amsoil is about the same price as Redline and Royal Purple. It is slightly higher than Mobile 1, as most of the top syn. brands are. You can go to www.amsoil.com and look at every product they manufacture and how much it is. There is even a feature that will search for a local dealer for you.

I sell amsoil mainly on it's change intervals. It's actuall protection is quite impressive, as most synthetics are, but is it neccessary? Not in most vehicles. I can honestly say that because it's true, stock cars and trucks that see normal use do not need the lubing advantages of synthetic UNLESS the manufacturer calls for it.

It's the guys with built motors, severe driving, offroad use, and people trying to get every last mile or hour out of an engine. This is why it's so popular with OTR trucks and year around ag. equipment.

The main advantage is your oil intervals. Amsoil, as does Redline and RP, costs about three times what quality dyno oil costs. The nanofiber filters are also a few bucks more than standard celluloss filters. The difference is you should ideally change that dyno oil in 3-5K in normal operating conditions. Amsoil claims 25K on their premium synthetic lines in normal operating conditions. Less down time, minimizing the frequency of opening a sealed motor to the elements, and adding engine life.

Is it for everyone? No. Some people, including myself, like changing their oil on vehicles that don't see a lot of mileage. Others feel compelled to stick to the 3K rule, regardless of what the manufacturer of the oil says.

Then there are other people that drive lots of miles and/or work their vehicles constantly and don't want to have to change oil every month and/or want the very best protection. This is where the synthetics pay off.

I drive a LOT fo miles in my 2001 Ram Cummins, and a decent precentage of those are pulling trailers. I love that I can go a full year without changing the oil with synthetic, regardless that I drive a lot.

 

[toy4x4runner]

"Maybe rotella is overkill- Maybe Amsoil is overkill as well. Even if the oil is superior, most engines need some overhaul sooner or later.
THe question is, is the extra money you spend for added protection (or added performance) worth it, if the time to rebuild is a certain amount."

pookster- I agree with you. If rotella is $2/qt and overkill, than Amsoil at $8/qt is overkill and overkill on my wallet. I've never had anything bad to say about Mobil 1. I've used mobil1 the most for over 6yrs and in many many cars... my Corvette, my 200K mile 20yr old Supra, 140K mile 4runner and LS1 Trans Am.

Royal Purple- might not be relavent, but I broke a rocker arm on my Corvette 1 day after I put royal purple in. So I don't mentally make a positive connection with royal purple, but it could be great oil. I just had crap luck with it or bad timing. I used mobil 1 for years, put the purple stuff in, next day BAM! broken rocker arm. That makes me weary of royal purple. What are the chances I switch oil ouf the clear blue after using mobil 1 for years and the next day I break a rocker arm driving normally around town?

Amsoil- left me broke and my engine must of liked the taste of that stuff. stuff was always low; no leaks or smoke. my motor uses less 10w-30 Mobil 1 now with 140K than it did with 10w-40 Amsoil at 120K. that's a fact.

So I guess if you compare all the "premium" oils... for all pracital purposes it'd be cheaper and fine to run the Shell Rotella. At least it'd keep the motor squeaky clean. CI-4+ API rating. Just odd how $5/qt mobil 1 metts SL/CF specs, and $2qt shell metts SL/CI-4+ specs and a lot of trucks use it.... big expensive trucks. if Mercedez benz, volvo & Scania and other people say it meats their spec for oil.... can't be all that bad. but the $5/qt mobil doesn't. I think I'll use the cheaper higher rated Shell and change it every 5K or so miles.