[pointlomadave]

I searched all technical posts on here and read all the ones pertaining to oil and got nothing...what oil viscosity do these things call for? 0.9L 3cyl turbo engine btw (USA).

I just ordered an 8mm square male socket on Amazon for $3 and an oil filter for $12.50. Dealer quoted $120 for the job and I refuse to pay that...especially when this same dealer has mucked up both warranty service jobs I've taken it in for.

 

[jzchen]

Let me see if this link works correctly:

MB 224.1 - Viscosity classes of engine oils (car engines) - Mercedes-Benz Specifications for Operating Fluids

Sent from my moto g(7) power using Tapatalk

 

[jwight]

You can download the manual from smartusa.com. It has a viscosity chart around page 220. ?

 

[khlam]

Did you look at the wall behind the passenger seat? I bought my car used (same year as yours) and the owner's manual packet was velcro'ed there. (Yes, I thought my car didn't come with the owner's manual too)
I think it uses Mobil-1 5w40

-Kelvin

 

[jwight]

Courtesy of Kane at www.evilution.co.uk (well worth the minimal subscription cost for any smart owner):

 

[OliverB]

Don’t forget the socket needed to remove the oil filter cap. The cap is in an awkward location and is plastic. Easy to bugger up the hex post if the socket isn’t the correct size. I’ve used 5w-30 in both the 451 I had and in the 453 I now have.

 

[mattwithcats]

I use Pennzoil 0W-40. ran great in my 451...

https://www.walmart.com/ip/Pennzoil-Platinum-Euro-0W-40-Full-Synthetic-Motor-Oil-5-qt/163165881

Liqui Moly is available from Rock Auto...

Engine Oil SAE 0W-40 Parts | RockAuto

RockAuto ships auto parts and body parts from over 300 manufacturers to customers' doors worldwide, all at warehouse prices. Easy to use parts catalog.

www.rockauto.com

You can get the oil filter from Rock Auto too..

2017 SMART FORTWO 898cc L3 Turbocharged Oil Filter | RockAuto

RockAuto ships auto parts and body parts from over 300 manufacturers to customers' doors worldwide, all at warehouse prices. Easy to use parts catalog.

www.rockauto.com

I use the Wix 51356 oil filter on my 451...