Favorite 15w-40

[WillBrinkhoff]

Favorite 15w-40? I like Kendall. What are the other options people, use. These are the choices I have and would like to know what most people like out of these options.

 

[fantastic]

I voted twice...cool!
Delvac & Rotella - Although Ive been buying the Delvac Extreme w/rebates the Rotella 15w-40 may be a slightly better base oil ratio. Convenience on availability is something good to have. If you would've had the new SuperTech 15w-40 Full Synthetic I'd also vote for it.

 

[userfriendly]

Duron
Delo
Delvac
Rotella

Deere and Delvac are the same thing in Canada.

 

[Brian123]

I voted twice...cool!
Delvac & Rotella - Although Ive been buying the Delvac Extreme w/rebates the Rotella 15w-40 may be a slightly better base oil ratio. Convenience on availability is something good to have. If you would've had the new SuperTech 15w-40 Full Synthetic I'd also vote for it.

Kind of odd here, my favorite 15W-40 is from Amsoil from looking at the specks of this oil. I have never used a 15W-40 oil, but this Forum lets members talk about a 15W-40 motor oil when they have not used it.

 

[Foxtrot08]

P66 and Kendall are one and the same.

Deere changes manufacturers often.

 

[tnt_motorsports]

I've used Mobil Delvac and have since switched to Mystik JT-8.

Just my $0.02

 

[burbguy82]

My go to in the past has been 5w40 Napa, but I think I am going to try Rural king in some kubotas and Amsoil in my truck.

 

[ripcord]

All of the above

 

[jtwrace]

Since I have a pail of it and the VOA is good, this is my new fav.

Sinopec T700
https://buysinopec.com/products/15w40-ck-4-synthetic-diesel-engine-oil

J

Post in thread 'Any interest in VOA of these oils?'

Nov 15, 2024

@fantastic here is the retest from the ATL Lab

• jtwrace

• 
• 

 

[dvblanch]

Liking the Rotella mostly just for the price and availability. Wal Mart / Tractor supply etc.has even found its way into my Harleys a couple times with no problems whatsoever. All oils mentionEd are fine.

 

[Bighorn2500]

Whatever meets the required specifications that’s on sale at the time I’m buying it. I have ran Delo, Rotella, and Mobil products before moving to group III hydrocracked synthetics and never noticed a mechanical difference in my Cummins or John Deere. Only found that Rotella smelled funky compared to the others.

 

[Oillover]

Other than Rotella T4, my runner up would be Motorcraft Diesel 15w40.
IIRC, it's one of the best (for the price).

 

[GR_CoB]

- DELO and AMALIE seem to fly under the radar, but both are great sleeper oils.
- Rotella is average, but praised above average for some reason.
- DELVAC is my favorite and what I run now in every car.
- SuperTech (cheapest option) is another great sleeper oil, especially with the recent addition of budget priced Full Synthetic 15W-40.

 

[facility1]

Schaeffer's 15w-40 700 & Royal Purple Dura-Lec ultra. some friends of mine are diesel mechanics and really like Royal supreme Ultra Max HD,,its manufactured by Royal Oil company.

 

[userfriendly]

Kind of odd here, my favorite 15W-40 is from Amsoil from looking at the specks of this oil. I have never used a 15W-40 oil, but this Forum lets members talk about a 15W-40 motor oil when they have not used it.

To simplify my choice, I look for manufacturers’ approval and licensing from API, ACEA, JASO and others.
Lubricants are blended to a performance requirement not a price point.
According to Mary Poppins, you can’t tell a book by its cover.