Ok,
Just to preface this, I grew up the son of a NASCAR Crew Chief, working as an apprentice in his shop. I went on to teach driving for both the Porsche Club of North America and The Lamborghini Academy, and I worked on aircraft as well, so I have a very analytical background when it comes to machines and lubrication.
Back in 2012, I was working for an exotic car restoration shop called The Creative Workshop (in Florida) when I discovered an amazing German motor oil called Rheinol.
The virgin oil Analysis was simply off the charts compared to Mobil-1. Far more additives, greater thermal stability, better detergency and better viscosity stability at high temperatures.
The downside is it's very, very hard to find.
When I bought Yellow Mustang in March of 2016, it had 54,000 miles on it and had only received Mobil-1 5/30 changed every 3,500 miles.
Early tests (laboratory analysis) of Mobil-1 in my former Mustang (supercharged 2001 4.6 V8 GT) indicated the Mobil-1 15/50 was still showing good additives (TBN) and stability/cleanliness when changed at 12,500 miles. (This was back before Mobil-1 offered a 25,000 mile synthetic motor oil.)
Based on the results of those periodic oil tests, I began changing oil (in my old Mustang) at 10,000 miles. At the time, I was commuting from Crestline to Palm Springs everyday, 140 miles round trip.
I switched to Rheinol Primus 5/40 in 2015. It has not only Porsche, Audio, MBZ, VW, BMW and Volvo approvals, but also Lamborghini and Maserati.
In general, I try to change my oil between 5,000 and 7,500 miles, but I often go the full 10,000 because of being both busy and lazy simultaneously.
At around 212,000 miles, I developed a 'tick' in the valve training of Yellow Mustang's 4.6 litre 3-valve V8. I traced this to a bad bearing in a roller rocker arm, so I changed all 24 rocker arms.
Here's what the inside of the engine looked like after 158,000 miles of 5,000 to 10,000 mile oil changes on Rheinol Primus 5/40.
Thursday, I visited a chum with a shop to use his hoist and change my oil.
My last oil change was on 09/04/2020 @ 235,000 miles using Rheinol Primus 5/40. As always, I use genuine Motorcraft oil filters exclusively.
My odometer is now showing 245,00, or just a shade over 10,000 miles on this oil change.
Here's the dipstick at 10,000 miles. Still clean enough the see through. No oil burned in 10,000 miles.
Continued in next post...
Just to preface this, I grew up the son of a NASCAR Crew Chief, working as an apprentice in his shop. I went on to teach driving for both the Porsche Club of North America and The Lamborghini Academy, and I worked on aircraft as well, so I have a very analytical background when it comes to machines and lubrication.
Back in 2012, I was working for an exotic car restoration shop called The Creative Workshop (in Florida) when I discovered an amazing German motor oil called Rheinol.
The virgin oil Analysis was simply off the charts compared to Mobil-1. Far more additives, greater thermal stability, better detergency and better viscosity stability at high temperatures.
The downside is it's very, very hard to find.
When I bought Yellow Mustang in March of 2016, it had 54,000 miles on it and had only received Mobil-1 5/30 changed every 3,500 miles.
Early tests (laboratory analysis) of Mobil-1 in my former Mustang (supercharged 2001 4.6 V8 GT) indicated the Mobil-1 15/50 was still showing good additives (TBN) and stability/cleanliness when changed at 12,500 miles. (This was back before Mobil-1 offered a 25,000 mile synthetic motor oil.)
Based on the results of those periodic oil tests, I began changing oil (in my old Mustang) at 10,000 miles. At the time, I was commuting from Crestline to Palm Springs everyday, 140 miles round trip.
I switched to Rheinol Primus 5/40 in 2015. It has not only Porsche, Audio, MBZ, VW, BMW and Volvo approvals, but also Lamborghini and Maserati.
In general, I try to change my oil between 5,000 and 7,500 miles, but I often go the full 10,000 because of being both busy and lazy simultaneously.
At around 212,000 miles, I developed a 'tick' in the valve training of Yellow Mustang's 4.6 litre 3-valve V8. I traced this to a bad bearing in a roller rocker arm, so I changed all 24 rocker arms.
Here's what the inside of the engine looked like after 158,000 miles of 5,000 to 10,000 mile oil changes on Rheinol Primus 5/40.
Thursday, I visited a chum with a shop to use his hoist and change my oil.
My last oil change was on 09/04/2020 @ 235,000 miles using Rheinol Primus 5/40. As always, I use genuine Motorcraft oil filters exclusively.
My odometer is now showing 245,00, or just a shade over 10,000 miles on this oil change.
Here's the dipstick at 10,000 miles. Still clean enough the see through. No oil burned in 10,000 miles.
Continued in next post...
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-- if we all had an electric car tomorrow... they would have to burn 1MILLION times more coal (or build 1,000 more nuclear reactor plants) to try to keep the power going to FEED the electric cars---- ultimately crashing the entire grid and sending us all back to the stone age, and while dealing with what to do with all the leaking batteries .... 
-- but Hey GO GREEN!!!
