What weight Mobil1 Do You Run??? (1 Viewer)
- Thread starter VCCruzr
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Same here, I'll go with the Rotella synthetic 5w-40 if they're out. I recently tried the Amsoil 5w-40 Synthetic to see if I saw a difference but still burn two quarts between 5 - 7K oil change no matter what I use.
15/50 mobil1 here. It's one of my favorite's for several of my vehicles.
Joke for all the oil obsessed here. After 165k of dino i didn't see the need to switch, Rotella 15w-40 dino
I only get an opportunity to change once a year, I'm more comfortable w/ synthetic 
5 30 syn here. 381K
bpenn1980
SILVER Star
Also mobil1 0w-40 for 2 oil changes (15k) since I bought the truck. Blackstone reports say its good oil and a good truck. Still have a rear arch leak, but cant tell if its better or worse, but dont really care either.
0w-40 m1 for me 125k
Mobil 1 High Mileage 10w30/40 blend. It's my special recipe. Leaks at the valve covers are gone. Consumption is still 1qt at every 4-5K miles. But the UOA was awesome. I have it posted in the OIL FAQ
Thought this was an interesting statement:
"Analysis of the test results showed that the Valvoline SynPower provided four times better wear protection than Mobil 1."
(Valvoline.com > FAQs > Motor Oil > Full-Synthetic Motor Oil)
also wonder what this means - from the same site
Anyway I like Rotella and Mobil 1 and like 0-40 in the winter and 5-40 or 5-30 summer. My main reason for using synthetic though is I "believe" from what I read that it resist sludge build-up and "varnish" better than standard oils.... and maintains it's rated viscosity longer before breaking down ...(but I am NOT a chemist - so this is conjecture!)
"Analysis of the test results showed that the Valvoline SynPower provided four times better wear protection than Mobil 1."
(Valvoline.com > FAQs > Motor Oil > Full-Synthetic Motor Oil)
also wonder what this means - from the same site
- Does using synthetic oil create more sludge?
No. Synthetic oils do not increase the chance of sludge. Valvoline motor oils are 100% anti-sludge guaranteed.
Anyway I like Rotella and Mobil 1 and like 0-40 in the winter and 5-40 or 5-30 summer. My main reason for using synthetic though is I "believe" from what I read that it resist sludge build-up and "varnish" better than standard oils.... and maintains it's rated viscosity longer before breaking down ...(but I am NOT a chemist - so this is conjecture!)
Mobil 1 0W40. I drop less than a quart ever 5000. 147k.
My friend is an oilfield mechanic and gets Mobil 1 10W-30 in 55 gallon drums. Price is right (free) so that's what I use. No problems. Virtually no consumption. My old bikes ('84 Honda XL600R, '71 Ducati 450 R/T, '81 Ducati Darmah) get the 15W-50 stuff.
Still with 10w40 high mileage at 195k. No leaks on the driveway and consuming maybe 1/4th a quart every 5k.
5w-30 Mobil 1 Clean
5W-40 M1 TDT...no consumption so far, just switched from 0W-30 and had noticed some.
Mobil 1 Turbo Diesel Truck 5W-40 year-round. Zero consumption during 5K oil change intervals.
another 0w40, ~170k. PNW.
Valvoline Syn 5w 30
