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I've been cross referencing and changing to NGK Iridium plugs in all OPE for at least eight years now. The plugs in my John Deere D140 lawn tractor are eight years old with 250 hour on them. My oldest piece of OPE has an Autolite Iridium replacement for the ubiquitous RJ19LM; everything else...

I've been running the Husqvarna JASO-FD rated oil for going on five years now without issue. It seems to produce less smoke and smell better than the Stihl silver bottle oil in all of my Stihl equipment.

Actually water vapor is a powerful greenhouse gas. Maybe they plan to ban water as well.

That's a useful observation that is welcome here but one could not consider it a scientific experiment. You would need millions of miles to gain any statistically significant information. My best guess here is that the move from 0w-20 to 0w-16 buys you a couple of hundredths on an MPG...

Have they banned diesel powered firetrucks yet?

I broke in my open frame Champion 4000/3500 with 10w-30 M1 High Mileage for five hours, then ran it an additional 30 hours on that same oil for the second OCI. After that I switched to 5w-40 Rotella T6. This machine has been supplanted by a Predator 3500 inverter generator that went through...

It's a shame that you don't have two reports from the same lab. Wear metal appear to be higher but may not be due to differences in procedures or equipment utilized by the respective labs.

Given a fully charged battery and a full tank of gas, which is 14 gallons, this vehicle has an estimated range of 560 miles. Last spring I managed to go 4 months and 2700 miles on a single tank of gas.

This morning I made an attempt to find out. After 13 miles of driving in 24F ambient the car was reporting three miles of EV range remaining. The experiment ended there because I was able to connect to a free charging station. While at my destination the power went out and a large diesel...

That sounds like an interesting experiment. Based upon what the car tells me I suspect that the range would fall between 16 and 18 miles. In cold weather the rolling resistance of the tires will be higher and the car is pushing heavier (more dense) air out of its way. And then there is the...

No - it's a PHEV with a 7.2 kWh battery.

At an ambient temperature of 28F with the climate control set to 71F the EV range is eleven miles. On a warm day without using the climate control the range can be 26 miles.

The prior oil was assumed to be Quaker State based upon the maintenance reminder sticker on the windshield. The vehicle is seeing mostly ICE miles recently due to low ambient temperatures. I conducted a test last year at 28F ambient and found the EV range to be only eleven miles. It's been...

Extracted 1/2 quart to add 1/2 quart HPL EC30. This was stated in the original post. This brew will be running for the next few months until it it gets warm enough to change the oil.

See https://bobistheoilguy.com/forums/threads/mobil1-ep-5w-30-5036-miles-2016-accord.389313/ where there are two oil samples from our K24 with more than 10k miles. All samples are M1 EP but the viscosity has varied between 0w-20 and 5w-30. On the last oil change we went to 0w-30 HPL Premium Plus.

This vehicle has always been dealer serviced up until now. I just assumed that they used TGMO but maybe they don't.

This sample was taken when removing 1/2 quart of oil to replace with 1/2 quart of HPL EC30. This is a PHEV so the mileage on the ICE is not what it may seem. The estimated ICE miles are not more than 4500. Another thousand miles have gone by since this sample and a good 90% of those were ICE...

This sample was taken when extracting 1/2 quart of oil and replacing with 1/2 quart of HPL EC30. Winter is upon us now so the oil may not be fully changed for a few months. 0w-20 HPL Premium Plus is standing by for that change.

It does appear that Valvoline is the big winner while Quaker State has receded a bit. It is interesting to note that the attention HPL gets here hasn't translated into a move in the rankings. I myself contributed one HPL change in 2024 and have another three changes queued up for the next few...

The port where a dipstick should be.