Stihl ms 362cm piston browning

[bwalker]

I know, Ultra was my first few tanks.. Rest was ls+, and last 5 tanks I switched to xp+... It's a new saw about 20 tank's..
What do you think about Aspen 2?

LS+?
Aspen uses a FB quality ashless oil. Would not use it at all. I have been playing with canned fuels they are all very similar to aspen.

 

[HarleyT]

 

[LarJea]

I have been using Stihl's synthetic Ultra oil for around 8 years in my 362CM and it just keeps running better than ever. Been running it in my 034 since Ultra first came out. Also using it in my 500i and will report back if I have any problems.

 

[Zooman362]

LS+?
Aspen uses a FB quality ashless oil. Would not use it at all. I have been playing with canned fuels they are all very similar to aspen.

 

[bwalker]

View attachment 1124066

Never seen that stuff before.
Just be aware that coking, or browning as you called it is caused by heat and or ashless oils. It's not the normal state for these engines and it is detrimental in the LONG term.