If you go to the Mobile 1 website and put in a 1996 Corvette they now recommend Mobile 1 Supercar 0w-40 instead of the old tried and true 5w-30. Anyone used this? Dan

 

Nah. Why? It's thicker at operating temp, right? So it's likely going to hurt economy some...and for what benefit?

 

How do I know if Mobil 1 Supercar is recommended for my Corvette?
Do you own a Corvette built in 1993 or later? Do you like driving your Corvette more than changing its oil? If the answer to both questions is yes, then we recommend picking up Mobil 1 Supercar 0W-40. With one exception being the seventh-generation Corvette ZR1 where we recommend Mobil 1 15W-50 when on the track. For those with a Corvette model produced before 1993, we recommend Mobil 1 15W-50 for both street AND track use. For strict track use on pre-1993 models, we recommend Mobil 1 Racing™ 0W-50. Still not sure? Send us a question here.

CUT AND PASTE FROM MOBILE 1 WEBSITE, Dan

 

Ayuh. I'm sure it's great stuff. I'd bet that like all motor oil of today, it's way better than good enough. BUT... I still don't see a reason to change from what I'm already using. I see hype...but what results might we see? Results?

You know, at our work, the new PistenBully 600 snow cat (from their web site):Representative of a new generation. Pioneer and milestone. Dream machine. This is what can happen when a manufacturer develops a snow groomer in close cooperation with its customers. With the PistenBully 600 Polar, we have jointly succeeded in setting new standards. In terms of power and performance. In efficiency, operation and comfort. The PistenBully 600 Polar is lighter than any other in its class. And more environmentally friendly. The PistenBully 600 Polar is more than just a normal snow groomer.

Sounds pretty good, huh? Note that their competition would say virtually the same things. Has a familiar ring to it, as the marketing script above, for the M1SC? But wait...that's not all!...

AutoTracer

Rear implement carrier with intelligent, active steering assistance. Possible in both rigid position (fixed) and floating position (relieved). Automatic and autonomous steering in curves. Automatic countersteering on side slopes. For automatic support and relief of the driver!

SlopeTracer
Intelligent control of the combined equipment carrier. Can be used like a parallel tool carrier via software. Ensures perfect ground adaptation of the tiller in hilly terrain and automatically adjusts the milling depth. The patented SlopeTracer simplifies operation and enables very large movement radii.
It also has:Cabin

• High-end sound system precisely matched to the vehicle
• Rear camera color
• DAB+ radio
• Bluetooth hands-free kit
• Connections: USB and audio in
• Comfort driver's seat

Lighting

• LED light package
• LED SideFinder lights integrated in the support frame
• LED TillerFlap lights
• LED BladeFlap lights
• Additional LED turn signals and tail lights integrated in the support frame

Electronics and batteries

• Simple onboard diagnostics with error output in plain text
• Automatic temperature compensation with cold run protection of the components
• Maintenance-free batteries with higher cold start current
• Service-friendly due to reduced variety of parts Ah-HEM!... ah...that's total BS.

With all of this...how could you NOT buy it?? Well? After owning several for the past 3-4 years, I can give you a plethora of reasons, but at the end of the day, what diff does the skier see/feel in the skiable surface, compared to that surface left by a 15 year old model?? NONE! NOTHING. ZEEEE-RO difference. None of that hoopla they tout does one iota to improve the groomed skiable surface. Fuel economy is no better after 15 years, and production is about the same too. So why change? And thus, I question the motivation to change to a different M1. I haven't owned a car yet, that wore out an engine...with any oil! So I'm not really looking for more wear protection. Are you? I can't see how thicker oil would help fuel economy...so I'm not really looking to $ave on gas with a move like that. And I doubt it's any cheaper than standard 5w30 M1....so I'm not looking to save money with this move. So I'd ask Mobil...or anyone: "What real result might I see from this switch?" Why will this oil do for me, that M1 5/30 won't?

 

Why don't you just use what the manual says instead of some oil company that thinks it knows your car?

 

And look, I'm not poo-poo'ing the stuff (it probably seems like I am). I have no doubt that it's a fantastic product. Said something to that effect above:
You asked if we're using it. Nope. I use some 0-40 M1 in our Caynne S...b/c that's the weight that the car calls for. But not the 'Vette.

 

I was actually getting the number for the Mobile 1 oil filter and the new oil came up with it. Dan

 

People overthink oil too much. Anything synthetic these days is MORE THAN good enough. Super tech, amsoil, Mobil 1 havoline, whatever.
​​
Personally, I try to buy oil boxes/bags. It's more cost effective, and a lot less crap to dispose of.

 

The only reason I can think of for Mobil 1 to make this recommendation is to lay the foundation for eventually discontinuing certain oil weights. Obviously just a guess though!👍

 

I could see using 40 weight on the track due to the greater heat load on the oil. But everyday driving I'll be sticking with 5w30 or 0w30.

 

That's what I think, too.

 

The oil debate always reminds me of discussing politics and religion with your relatives at Thanksgiving.

Pass the cranberries please.

 

Clean oil for the win, take your pick. Napa gold filter for your application. On to the next mysteries of life that need understanding.

 

I bought a couple of 5 qt jugs at Napa with the $25.00 rebate today. I bought the 5w-30 for the vette. Dan

 

That's exactly what I've been using too. So far, the cylinders are still intact.

 

of course.... I have a good supply of M1 Syn 5-w30 stored on my shelf anticipating future changes....

 

I don't think the 0w40 M1 even existed when the C4 was built, so GM couldn't exactly recommend it for the car. The benefit of a 40 weight at hot temps is better high-temp/high-shear viscosity: i.e., it doesn't break down as easily at high temps and high loads. This is the classic track use scenario in particular, but basically any time you're hammering your car. If you just cruise around town slowly, you'll never need it...but then you also don't need a Corvette for that.

The reason the 0w is better is that it flows to all the important parts of your engine quicker on cold start. This is a benefit even on the hottest days: 0w40 has a lower viscosity at 40C (104F) than 5w30. This reduces wear on cold startup. So 0w40 is better at both temperature extremes. Why wouldn't someone run it?

Frankly, there's no real reason for 5w30 to exist anymore. 0w40 is pretty much always the better choice. I would probably not pay extra to run the Supercar (Dexos 2) product in a C4, however. It is primarily intended to protect cats as well as intake valves from buildup on modern DFI engines, where there's no fuel in the intake to wash the intake valves and blow-by can be an issue. The "regular" 0w40 is great stuff and shouldn't cost any more than 5w30.

 

My take on Mobil 1 anything… there are better oils to run in your car than Mobil. I don’t care what tag is under my hood. I think Mobil 1 was king back in the day of the C4 but they have been surpassed. Check out amsoil, specifically the signature series and dominator series. Way higher zinc and additive levels in amsoil. Super slippery stuff. Way better wear properties. Better cold flow and heat resistance when compared to other brands of same viscosity. have run amsoil for a while in all my vehicles, ATV, and power equipment. When I started using it in my truck, on average I was seeing about 20 or so miles more range. Not sure what it equates to in MPG but I swear by their products. I had 150,000 on my Cummins diesel and it ran like new with ZERO blow by. And that was with a giant turbo, big injectors, and a stupid tune level. Also, if you spend $20 on a one year membership, you get significantly discounted prices. It’s not cheap, even with the discount, but with the discount it’s just a little more than Mobil 1.

 

Yeeeaaaah....but I'm getting BETTER results, using "inferior" M1 product....so what have you shown us about Amsoil?

 

Not trying to ruffle feathers Tom. Just my opinion.