I recently bought an S60 R, and I know the previous owner used synthetic oil, as will I. But I do not know which one he used, will it matter if I don't use the same oil he did. If it does not, any recommendations, I was leaning towards Mobil 1, but if someone has another recommendation, I'm open to them.
Thanks



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There are lots of good oils out there. There is also lots of great marketing by the oil manufacturers. Mobil 1 is a good oil but it wasreformulated recently into a "fake" synthetic or hydrocracked oiljust like Castrol Syntec. To get a true synthetic,the only ones left are the oils from the small companies like Amsoil, Redline and the like. To check if a synthetic oil truly is a synthetic and not hydrocracked dino, check the MSDS sheets for the product. These areavailable from the manufacturer online (MSDS= Material Safety Data Sheet).
Also a great website to browse is bobistheoilguy.com

 

Wont hurt to switch to different brands.

 

2002v70 speaks the truth mobil 1 is reformulated petrolium product (hydrocracked). Amsoil is 100% synthetic
I use this 10w30 :http://www.amsoil.com/storefront/atm...amp;zo=1231081
here are some charts comparing the different 100% synthetics to the hydrocracked synthetics:http://www.oilsyntheticoil.com/page/1089352
I get 24-25 mpg on regular crusing at at 75 mph in ct with my 05 r 6m. On premium it is lower by about 10%.

 

Thanks all greatly appreciated!

 

Rdriver, there is no proof about what is written above regarding Mobil 1. People just want to spread rumors. There was one oil tested from the Mobil 1 EP line that the tester claimed had some Group III blended in. Now suddenly all of their oils are all Group III? Wrong. Mobil 1 is still a great product. You can't go wrong with it. It can be found at Walmart for a good price. I would suggest you use theoriginal Mobil 1 instead of the EP line, especially if you are going to stick to the Volvo-suggested change intervals. It is cheaper and more than capable of these intervals.

Have used Mobil 1 and Amsoil. Both good products.

 

Hard to argue with that logic. Even group III base oil synthetics are not inferior at all. They are great oils.
Pennzoil plat, Mobil 1, Syntec are great oils and would be okay for at least 5K oil changes easily.