Redline 15w-40 v.s. Royal Purple 15w-40 in a TDI

mkosem · Sep 17, 2005

I'm looking for a 15w40 oil for my car to run next summer, but I'm not sure which of these two will be better for my 01 TDI. I'm thinking that since the 506.01 oil standard is at 0w30, the lighter of the two (redline) would be the better choice. However, I'm not aware of the additive package differences. Does anyone know which one might be best for summer protection and mpg?

--Matt

WOOCHOW · Sep 17, 2005

I've used the RedLine product in my 2002 TDI a couple of times and an oil analysis showed it was fine with my 10,000 oil change interval. However, the Mobil Truck/Suv oil is a great oil for these motors. That would be my preference, even in the summer, and will save you enough cash for some beer to enjoy after you change the oil.

Pablo · Sep 17, 2005

I would think they would be very similar in UOA's for reasonable OCI. But they are so expensive.

Why not use M1/D1 or even lower cost, Amsoil 15W-40 and extend the OCI?

LateArrivalforLSU · Sep 17, 2005

Another vote for M1 Truck & SUV.

mkosem · Sep 18, 2005

I'd really prefer to go with a 15w-40. Would amsoil be an improvement over these 2? RP is only $5 a qt.

--Matt

Pablo · Sep 18, 2005

That's a good price for RP. Who sells it at that price?

Amsoil's 15W-40 is about the same price, less ($4.26/qt) if you are a preferred customer.

Honestly in a TDI the wear would be about the same...but the TDI guys will pitch their favorite oils. Most don't use 15W-40, IMHO.

mkosem · Sep 18, 2005

actually, I guess it's slightly more. But I can get it locally here: http://store.summitracing.com/partd...04154&N=4294925094+400484&Nao=20&autoview=sku

--Matt

mkosem · Sep 18, 2005

Isn't there a 15w40 Schaeffer oil? How would that compare?

--Matt

Ken2 · Sep 20, 2005

Schaeffer has their #700 premium synthetic blend 15W-40 and their #9000 full synthetic Group III/Group IV 5W-40. Either will do an excellent job, and will likely give the lowest cost per mile.

Ken

TexasTDI · Sep 20, 2005

No problems using Amsoil 15w-40 in my 2000 TDI in the HOT Texas weather. UOA's were very good, even a little better than the UOA's when I switched to Amsoil 5w-40.

What temps do you have in OH? I know your winters are COLD. Been to Dayton before right around Christmas time. Just about froze my butt off!

In all honesty, you would probably be better off using a 5w-40 year round.

mkosem · Sep 23, 2005

Temps in the winter are sometimes below zero, the summertime rarely tops 100. Perhaps 5w40 will be the best...

--Matt

Thatwouldbegreat · Sep 25, 2005

We've run Delvac 1 5W-40, Rotella 5W-40, and Amsoil European Formula 5W-40 in the TDI.

I wonder if Redline 15W-40 is worth a try.

Doug Hillary · Sep 25, 2005

Hi,
yes Matt - perhaps as you suggest, a conforming 5w-40 is best!

Doug

mkosem · Sep 27, 2005

Maybe Amsoil 5w40? That stuff seems to be just right for my euro-diesel.

--Matt

Redline 15w-40 v.s. Royal Purple 15w-40 in a TDI

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