Peak motor oil

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19,528
Location
Lake Forest, CA
I have FAR 10W30 Peak oil in '94 Lexus LS400. The engine is running very smooth with it, quieter than Chevron Supreme or Havoline Deposit Shield of the same weight. May be because it is thinner than either one. For the same price, I would buy it again.
 
Messages
9,365
Location
USA
 Originally Posted By: HTSS_TR
I have FAR 10W30 Peak oil in '94 Lexus LS400. The engine is running very smooth with it, quieter than Chevron Supreme or Havoline Deposit Shield of the same weight. May be because it is thinner than either one. For the same price, I would buy it again.
same price =FAR?
 
Messages
2,919
Location
Southeast
Peak 5W-30 is working well in my Toyota. It's quieter. Gas mileage is down a little. Viscosity must be higher than the YBP and PP that I had been using in the vehicle. Got 15 more quarts (3 changes) so I'll be sticking with it at least that long.
 
Messages
4,370
Location
MS
Peak is supposed to be thinner than both PYB and PP according to their data sheets. One of the thinner 5W-30s around, supposedly.
 
Messages
4,370
Location
MS
 Originally Posted By: spursfan600
is it good that its a thinner oil?
Some would say yes, some would say no. Peak 5W-30 is close to a 20-weight.
 
Messages
3,402
Location
Iowa
Info from their website shows it a bit on the thin side but nothing I'd worry about at all. SAE Viscosity Grade 5W-30 Bulk Part Number P3M050 Drum Part Number P3M051 API Classification SM ILSAC GF-4 API Gravity 32 Flash Point, ºC 206 Pour Point, ºC -39 Viscosity '@ 40 ºC, cSt 55 '@ 100 ºC, cSt 9.94 Viscosity Index 169 Noack Volatility 14.5 Sulfated Ash, wt% 0.96
 
Messages
15,387
Location
N.H, U.S.A.
Worst running oil I ever had in our 05 rav 4. Mobil clean 5000 or Exxon superflo ran much better with better mileage. I think someone "peaked" in the bottle. Look at that bad NOACK volatility. Any VOA/ UOA to support my ascertion its a weak oil?
 
Messages
627
Location
Watkins Glen, NY USA
It is the official oil of the Indycar series, which alone makes it more interesting than anything NASCAR approved. BTW, Mobil 1 is what is used in all the Indycar engines. Another rebranded oil. Probally WPP made.
 
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