Recommendations for 20W-50 motor oil
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15W40 will be much easier to find. Stores around here don't have 20W50 on the shelves anymore and we probably have a similar climate as I live in Toronto.
Rotella 15W40 actually goes on sale from time to time as well.
Rotella 15W40 actually goes on sale from time to time as well.
There is a max-life 20W-50 but that may be hard to find at stores.
Castrol GTX 20/50 puts up some surprisingly good used oil analysis as well. IIRC, one member ran it for 3000 in a 300ZX and the used oil analysis looked almost like a VOA.
Far as old German engines go, a lot of them do call for 20w50. Might be on the right track.
Far as old German engines go, a lot of them do call for 20w50. Might be on the right track.
I think I see Castrol, Pennzoil, Quaker Stare, and Valvoline 20w50 in my area. Walmart supertech also comes in 20w50.
Motorcycle shops also sells a good selection of 20w59 for air cooled bikes. But they tend to be much more expensive
Motorcycle shops also sells a good selection of 20w59 for air cooled bikes. But they tend to be much more expensive
How about Castrol 5w50.
Valvoline VR1
Can't go wrong with Valvoline Vr1 20W-50
It's SM/CF, ACEA A3/B4
And has around 1300ppm of Zddp
Among Conventional 20w50 oils i have yet to see a better one.
It's SM/CF, ACEA A3/B4
And has around 1300ppm of Zddp
Among Conventional 20w50 oils i have yet to see a better one.
I used all sorts of 20w50 conventional. Supertech worked as well as any of the name brands.
I would not use Castrol GTX in a flat tappet engine, all the used oil analysis and VOAs show it has too little Zinc & Phos ( only 600-800ppm )
I used to use castrol 20w50 in my M116.
I used to run Castrol GTX 20W50 in many hard OVER worked engines, and they all did well on it, from my 440 Dodge powered Class A RV, big and small block GM motors, everything with some age on it. I don't know what MB originally recommended for your (gas?) 2.2, but if it's getting old & has trouble with hot idle oil pressure, I'm sure GTX would do the job.
Thanks for the recommendations so far. Based on the number of Castrol recommendations I called their Tech phone number. The person I talked to said they would only recommend their 5w-50 as it was the only one of their oils with enough zddp for flat tappets. But it's synthetic. So far it looks like Valvoline VR1 conventional 20w-50 or go to a diesel oil conventional 15w40. I know some people say not to put diesel oil in a gasoline engine and others swear by it. Since I don't have cats I don't need to worry about the higher zddp. I understand that diesel motor oil has more detergents than gasoline motor oil, but how can that be bad?
Amsoil makes a 2 different 20w50 synthetic oils, and a 15w50. Mobil 1 has a 15w50 as well.
20W50 is stout oil as it starts with a 20W base oil + even conventional needs few viscosity improvers, BUT it will prolly NOT start in the cold, especially conventional!! i would give Mobil I 15-50 a go for colder weather being thinner at cold temps + since its synthetic but only group III it forms little wax when cold. RedLine real synthetic 15-50 would be a top choice if you feel the $$$$$ is worth it, prolly one of the best oil blender these days!!
Originally Posted by Building3
The 2.2L in-line 6 w/carb is in a 220S. It never gets driven in the winter. It is in a heated garage so I don't have to worry about that. the MB mechanic was adamant about conventional only for all of the fluids in the car.
I'm going to assume if you put a modern synthetic in there it will spring a bunch of leaks so that is good advice. You should probably just run bulk 15w40 conventional perhaps with additives if you need it.
The 2.2L in-line 6 w/carb is in a 220S. It never gets driven in the winter. It is in a heated garage so I don't have to worry about that. the MB mechanic was adamant about conventional only for all of the fluids in the car.
I'm going to assume if you put a modern synthetic in there it will spring a bunch of leaks so that is good advice. You should probably just run bulk 15w40 conventional perhaps with additives if you need it.
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