Dang! Newer ones must run warmer. Only times I’ve seen 230 degrees on my 2.5 was climbing the passes in the cascades or down in Oregon on mt, hood/jefferson.
Not sure if this will help you or not, however, I have had these issues too sending samples to OAI up that way. I started buying the no postage paid kits through Amsoil, buy my own postage for $4 less than the pre-paid kits, and they go to the salt lake Utah lab. Still sent usps, faster to get...
The piston ring area is really the only area that the larger, harder carbon bits some of us have found in our filters with HPL can come from. Wwilson I know has stated it on here before. The ring area is the only spot in an engine that has the heat to create those. We are not talking about...
I just asked Dave at HPL what he would recommend for my 3.0l Volvo penta and he said his 15w-40 HDEO for its sheer stability. I imagine another HDEO would be good to if HPL isn’t your thing.
In my own experience I do believe Amsoil SS cleans, even though they don’t say it. I used it in my outback for awhile then switched to HPL and started cutting filters, which showed little to get excited about. My truck on the other hand, showed decent carbon bits after running HPL for a bit...
1999 Monterey 180, Volvo Penta 3.0L and SX Cobra drive, new to us boat.
Out: No idea. Thick, pitch black, oddly stinky nastiness in both motor and outdrive.
In: Mobil Delvac 1300 until the HPL HDEO shows up, supertech filter. Amsoil marine gear lube for the outdrive.
My vehicles fall into the severe service category so boutiques are indeed a perfect fit for them, like you explained. Motorcycle is my commuter, 12 miles one way redline shifts, ridden hard, fuel dilution. Outback is grocery getter, some short trips. Truck hauls the boat and large other random...
Did you fully read my post?
I will never claim that boutiques will extend a machines life with lower wear than OTC oils, Blackstone has shown us that there is statistically no difference across oils.
I am talking about staving off oil burning, which can cascade into other problems. Remember...
Two advantages to boutiques:
1. Excellent value proposition: run the lube longer with no ill side effects, paying less for maintenance in the long run.
2. Keeping the biggest killer of ICE machines at bay (outside of wrecks of course.) stuck piston rings, which lead to oil burning and snowballs...
He really doesn’t oversell and I really appreciate it. Recommended vanilla PCMO for my car and it’s worked out great without overspending.
No worries Titan. Knowing they don’t try to oversell and I am certainly not knowledgeable on the subject like the HPL crew, I value their recommendations!
I’m not at all, who said I’m entertaining other advice? What I was getting at is if their HDEO is recommended for a boat motor that will see far more abuse than decreppo’s road-going car why look at a pricier oil that isn’t needed?