Alright, so we all know that there is no best oil. But, we also know that it's fine to have favorite oils for certain vehicles, because some oils perform differently in different vehicles.
I will list my own, and my parents vehicles, and the oils I favor for them.*
*Just because these may be my more favored oils does not mean I will only run that oil in that vehicle; I might run other oils for the sake of price, and the sake of just trying something else.
1. My [daily] 2001 Ford F-150 5.4L V8:
Conventional: PYB 5w-30 - with Motorcraft FL820S
Blend: N/A (Haven't used a blend)
Full Syn: RP HMX 5w-30 - with RP filter
2. Mom's [old daily] 1996 Ford Explorer 4.0L OHV V6:
Conventional: PHM 5w-30 - with Motorcraft FL1A
Blend: Castrol GTX HM 5w-30 - with Purolator Synthetic PSL30001
Full Syn: N/A (Haven't used a full syn)
3. Mom's [new daily] 2005 Lincoln Aviator 4.6L V8:
Conventional: N/A (Haven't used a conventional)
Blend: N/A (Haven't used a blend)
Full Syn: Mag 1 0w-20 - with Wix 51372 (or Motorcraft FL820S)
4. Dad's [daily] 1998 Buick LeSabre 3.8L V6:
Conventional: SuperTech HM 5w-30 - with ACDelco PF47
Blend: VML NextGen Semi-Syn 5w-30 - with Wix 51040
Full Syn: N/A (Haven't used a full syn)
5. Our [summer/show-car] 1989 Chevy Camaro RS 305 TBI V8:
Conventional: PYB 5w-30 and/or Havoline 5w-30 - with ACDelco PF454 (or Purolator L15313)
Blend: N/A (Haven't used a blend)
Full Syn: (Haven't used a full syn)
And, for the quad, motorcycles, and mowers:
1. My 2002 Yamaha V-Star 650
& Dad's 2001 Yamaha V-Star 1100:
Conventional/Blend*: Mag 1 4T 10w-40 - with Wix 24935
*Not sure what this oil qualifies as.
Full Syn: Rotella T6 5w-40 with K&N KN-145
2. My 2004[?] Yamaha Raptor 350:
C/B: Mag 1 4T 10w-40 - with K&N KN-142
Full Syn: Klotz Techniplate 4-Stroke 10w-40 - same KN-142
3. Our old Cub Cadet (no clue what model) small tractor - 3-cyl Mitsubishi diesel:
Conventional: Rotella 15w-40
or Delo 15w-40 - with Wix 51334
Blend: N/A (Haven't used a blend)
Full Syn: Rotella T6 5w-40 - same Wix 51334
*4. (Newest additions) Dixie Chopper B&S 27.0 HP
& Husqvarna (Zero Turn) B&S 16.5 HP:
*Have not changed oil in these yet, because we just got them this summer, and both just had oil changes before we bought them.
When the time comes, I plan on using any 5w-30 oil I have stocked up, as both take 5w-30.
I have already bought the filters for them. They both came with the tiny NAPA 7035 filter. However, there is room for a 3.3 inch filter on both. They use the standard B&S 3/4 inch threads. I bought a Microgard MGL51348 (made by Wix/NAPA) and a Fram Ultra XG3614 to use for these mowers. I'll probably use the Ultra on the Dixie, as it has a bigger engine, and will be used at our large property out of town; and the Microgard on the Husqvarna, as it has a smaller engine, and will be used in town on a smaller piece of property.
Yes, I know. This is a lot of information for such a simple thread. But I like to be excessive.
~ Triton