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Yep, oil/fuel dilution issues. It was reaching +5% levels within 500 miles on 0w20 during extreme cold temps. While I didn’t do an oil analysis…I judged the amount of gas based on reference points on the dipstick. I’m thinking the 5w30 viscosity is a positive change for the engine, and gives...

Update on my Tacoma hybrid T24A. I switched to Pennzoil Ultra Platinum 5w30 a couple thousand KM's ago. Truck runs great, and oil dilution issues have pretty much gone away. I've been driving in the same cold temps (-10f and below)...and the oil level is remaining mostly constant. Maybe...

How does the additive pack of Pennzoil Ultra Platinum handle fuel dilution? Can it maintain grade and resist wear? At what percentage should one become concerned with fuel/oil dilution in a direct injected turbo engine?

@mitsuman47 not this time I didn't check...but previously when in 5-10f temps, the engine oil was hovering around the 200f mark after 30 minutes of highway driving. I realize temps much higher are needed to evaporate the fuel. During this last 400 mile trip, there were some full throttle...

But it only has 3,700 miles…truck is still brand new. A fuel system cleaner already?!

I’ve got a 2024 Tacoma hybrid…only at about 3700 miles so far. I live in the north, cold winter temps…and I’m struggling major time with gas in the oil. Forget about short trips…I just did a 400 mile highway only trip, -13f temps, fresh oil change and level just below the full mark. Mobil 1...