NEO Synthetic 75W90 HD for 6s MTX

[chikoo]

I have been running Redline MT90 since 2003. Guess it is time for a change.
Anyone tried out the NEO Synthetic 75W90HD?

What the owners manual says:
3.0-liter engine
API Service GL-4 or GL-5
SAE 75W-90

http://www.mazdausa.com/MusaWeb/pdf/...I_Edition_.pdf

[Goldstar]

Why do you want to switch from Red Line MT-90 to Neo?

Happy Motoring!

[chikoo]

to find out if it gets any better than it does with Redline MT-90

[chikoo]

btw, this is the only reference I found where somebody is using NEO in a Mazda. What say you?

http://www.rx7club.com/showthread.php?t=371203

[Goldstar]

Originally Posted by chikoo

btw, this is the only reference I found where somebody is using NEO in a Mazda. What say you?

http://www.rx7club.com/showthread.php?t=371203

CON
I checked out the NEO website. My intention was to discover the base stock from which their oil is formulated. This is what I found:
http://www.neosyntheticoil.com

"The full line of NEO's 100% Synthetic Racing Oils and Greases are a chemistry blend of lubricants, designed to have the exceptional capability to target and provide unmatched lubricating to a specific area or application in need of severe protection. This consequently supplies general high-performance lubricating needs, with protection way beyond the limits of what is necessary."

"NEO motor oil will not break down as readily under engine heat because it contains no petroleum oil. It is based on materials that are ' "thermally stable" ' maintaining the proper viscosity in temperatures from -60 deg F to +500 deg F. Since NEO does not break down chemically, it retains its effectiveness much longer than other motor oils."

-60 deg F to +500 deg F? Surpassing even turbine oil capability?

And finally, "NEO lubricants are 100% Synthetic and target their formulations to address specific applications - a method proven to be successful, as illustrated in the following example. NEO was approached by several Formula 1 teams in Europe seeking a product to extend the life of their CV (constant velocity) joints and transmissions, NEO's developed their HPCC#1 (a high technology CV grease) and CV 500, along with NEO's 75w90RHD gear oil which have resulted in substantial cost savings and extended the life of their drivetrain components." [I believe I have reproduced the quote correctly.]

After reading this verbiage, and the rest of their material posted on the website, my question remains, from which basestock is this oil derived? The almost miraculous temperature range claimed would seem to mandate that NEO oil is derived from Group V Polyol ester base stock. Or maybe, at the very least, a mixture of that and Group IV PAO? Funny how companies like Amsoil, Motul, Red Line, and Silkolene proudly proclaim their synthesized hydrocarbon heritage so one knows exactly what one's getting, in contrast to NEO's reticence to reveal their formulation. As I recall, Hydrocracked Group III petroleum-based oils can also be labeled 100% synthetic.

Now I'm not saying that NEO's base stocks are synthetic, or petroleum-based, or whatever, I'm just saying I don't know because Neo chooses not to tell me. But, since they won't tell me it makes me suspicious so I'll stick with a brand that treats me as a knowledgeable consumer, and enables me to know that my engine and gear box are being bathed in the true nectar of the gods.

PRO
Also from the NEO website:

"Success has been a major part of NEO's history and is certain to be a major part of its future. The 2-cycle oil NEO developed for Mercury Marine helped bring Betty Cook her two world championships. Neo has also helped set land speed records - including the fastest Harley Davidson (set at Bonneville). NEO helped Dale Armstrong engines set their hall of fame records. Over 50% of the European Formula 1 cars use some type of NEO product, and NEO helped the Draco team win two GM Lotus Euro Series Championships. By 1987, every Indy car that ran a March Engineering Gear Box at Indy use the gear oils and CV joint lubrications developed by NEO."

Also of possible interest, the 75-90 HD lube for road cars is not the 75-90 RHD recommended by NEO for high end racing use (F-1, IRL, Champ Car, ALM, and NASCAR). As NEO puts it, "Best Gear Oil in Racing."

The reference you posted from RX7Club indicates the overwhelming superiority of NEO over Red Line MT-90. After switching to NEO, 2nd gear grind and notchiness was totally eliminated and the car, "now fells like butter at all temperatures and through all gears, even when shifting to 1st while rolling. Silky smooth is all I can say!!!"

With a testimonial like that, it's certainly worth a try. We're all seeking our automotive Nirvana and we all must follow different paths to achieve our dream.

Good luck and let us know the results.

Happy Motoring!

[chikoo]

thanks Goldstar. I have ordered the NEO 75W90 HD and will soon put it in.

The primary reason of buying it was the lack of ANY negative opinions regarding NEO.
and as you well know 1 out of very 100 satisfied person will post a good review.
100 of 100 dis-satisfied persons will shout so hard it will feel like 1000 unhappy persons.

[Frankenprotege]

I used to run heavy shockporoof and mtl in a 50/50 mix. Then I talked to a dragracer/machinist with an unimpeachable reputation who deals with 2500hp cars that had to replace the rearend gears after every run, when using heavy shockproof as the gearlube. Then they switched to torco. Redline, Mobil1, royal purple, amsoil, etc, all those, synthetic or no, are rated GL4 or GL 5. This Torco stuff is service rating GL6. Now these drag cars are using the same set of rearend gears for a season instead of one pass. Right now my rallycar has thier non-synthetic 85w140 in the rear end, centerdiff, and trans. I found better smoother faster shifts, up and down. The film strength of this goop is unbelievable. Brakleen can't touch it. When it spills you have a mess on your hands. I like that. Maybe it keeps the shafts and case from loading up enough to go kaboom. Torco also has a synthetic 75w90 that's also GL6. It ain't cheap but I think I'll run that stuff in all my gearsets. You can get it direct from their website...

[chikoo]

I just got my bottles of Neo 75W-90 HD and it says on the bottle:

rated GL-2 through GL-6.

I guess Torco is not alone now.

[Goldstar]

Originally Posted by chikoo

thanks Goldstar. I have ordered the NEO 75W90 HD and will soon put it in.

Your welcome, glad to be of some assistance. I hope this oil works well, and to your satifaction.

Frankenprotege, thank you for the heads-up about Torco oil. If you hadn't mentioned it, I never would have thought to check out its characteristics, because although I'd heard of it, the memory of it was lying somewhere dormant in the hidden recesses of my brain. A preliminary look indicates that some of its products are based on fully-specified, true synthetic base stocks. I intend to investigate this brand more fully and see what develops.

Happy Motoring!

[Frankenprotege]

And I'll check out this NEO stuff!

[pigeon]

Originally Posted by chikoo

1 out of very 100 satisfied person will post a good review.
100 of 100 dis-satisfied persons will shout so hard it will feel like 1000 unhappy persons.

Thats smart, I like that

[chikoo]

OK.

Got it in yesterday evening.

First impression: Honey? Butter? Teflon?

You choose the word, but the end result is that it shifted very nicely. Definitely an improvement over Redline. No doubt. Not that Redline was not better than stock fluid. But NEO 75W-90HD definitely feels better, more luxurious, imo.

Second impression:
- Started the car this morning and shifts were just like yesterday. With Redline cold engine shifts were definitely not as good as after it had warmed up. +1 to NEO.

- I was also able to shift to First when coming to a stop. Something I could never do with Redline. This gives me faster time to take off after a momentary stop. +1 NEO.

- No more crunching in Third when the fluid is not cold and also not hot. This was one of the annoyances I had with Redline. +1 NEO.

[pigeon]

Awesome, how much does this stuff cost & where do you get it?

[chikoo]

Originally Posted by pigeon

Awesome, how much does this stuff cost & where do you get it?

I got it from here

http://www.bakerprecision.com/neocirc.htm

$11.75 - quart
$41.45 - gallon

[Goldstar]

Seems like you made a wise choice as it cleared up all the difficulties you were having with Red Line. Thanks for your evaluation.

Personally, I've had no problems with Red Line but if I did, I'd certainly look into NEO based on your own experience. Even at low temperatures, shifting has been smooth and easy, and I would expect that since MT-90's pour point is -45 deg C (-49 deg F).

Whenever I shift into 1st gear while still rolling, I always double clutch (and synchronize engine speed with road speed) so engagement is always smooth and silky, especially with the Red Line.

Happy Motoring!

[Intruder]

Originally Posted by chikoo

- No more crunching in Third when the fluid is not cold and also not hot. This was one of the annoyances I had with Redline. +1 NEO.

Can you please elaborate on this?

[chikoo]

Originally Posted by Intruder

Can you please elaborate on this?

When shifting from 2nd to 3rd fast, the stick would go in as if there is no lube and slam into 3rd. The feeling was horrible and a loud thunk would be heard.

I never had any grinding issues, so that is not what I mean, btw.

[chikoo]

Originally Posted by Goldstar

Seems like you made a wise choice as it cleared up all the difficulties you were having with Red Line. Thanks for your evaluation.

Personally, I've had no problems with Red Line but if I did, I'd certainly look into NEO based on your own experience. Even at low temperatures, shifting has been smooth and easy, and I would expect that since MT-90's pour point is -45 deg C (-49 deg F).

Whenever I shift into 1st gear while still rolling, I always double clutch (and synchronize engine speed with road speed) so engagement is always smooth and silky, especially with the Red Line.

Happy Motoring!

Yes. I am happy.
RedLine served me well so many years. Never had a real problem. It was all in the quest to get something better. Neo is providing me that....a quick shifting, no doubleclutching on rolling stops, and a smooth luxurious feel (this is the deal-maker).

[chikoo]

People also swear by Motorcraft XT-M5-QS German synthetic oil
(http://forum.miata.net/vb/printthread.php?t=278010)

Found here:

http://www.cdiautoparts.com/Order/Or...r=&mode=search

enter XT-M5-QS in the search box

List Price Your Price You Save In Stock Quantity Buy
MTO XTM5QS Part Description
ON BY PIECES
$18.92 $15.22 $3.70 Yes