chinoxl75

I have heard that it isn't good to run a full synthetic oil because in the combustion stage it doesn't breakdown enough. Shed some light if you know what is true about this subject.

fcfanatic

Please search. This answer can be easily found throughout the forum FAQ and archives.

rick_tj

God, not another one. If you're using a synthetic, make it a GOOD quality one. Non-synth works fine too. Whatever you want, nobody cares anymore.

jacobcartmill

iTrader: (6)

castrol 15w50

JMY952

Summer - Castrol GTX 20W50
Winter - Castrol GTX 10W30

^ This is what I run in my car. Most people on these forums do as well.

If you want to run synthetic use Royal Purple.

jacobcartmill

iTrader: (6)

i meant to post 20w50, i'm sorry.

the only 15w50 i've ever seen was the castrol full synthetic stuff

Mombodogs

This is a question with as many varied answers as there are members. Personally, I like Castrol 20w-50. I've heard Valvoline, Quaker State, Penzoil, etc. Even the members with countless years of rotary knowledge argue about this subject. Because of this "explosive" subject with all, I have taken it upon myself to e-mail 5 manufacturers of motor oil with "scientific" proof of their products superiority in ROTARY engines only. We will see how many respond, and will give results next week.

PEACE THE DOG

felixwankel88

ive allways ran castroll GTX 20W- 50W and have had no problems

TurboIIRyan

Mobil one 10w30 full synthetic. I'm premixing.

Aaron Cake

iTrader: (1)

In the past 7 days, we have had about 10 different oil threads, and this topic comes up about 100 times a month. Please use the search function to locate threads with the query "oil recommendations", "what oil" and variations on that.

Thread closed.