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- Aug 15, 2024
- Messages
- 343
Was it recently? My understanding is that it’s very difficult for an oil to meet API SP requirements without some synthetic base stock added in
Pennzoil conventional 10W-30 HM vs Supertech FS 10W-30 HM for RMS weep
- Thread starter AZjeff
- Start date
I’ve had excellent luck with M1 HM 10w30 stopping a leak in a 4.0 RMS.
Seems to be a draw between that and Maxlife nowadays. I have no success stories with Maxlife, but I’m thinking about giving it a try with my old Blazer that’s leaking just about everywhere.
Seems to be a draw between that and Maxlife nowadays. I have no success stories with Maxlife, but I’m thinking about giving it a try with my old Blazer that’s leaking just about everywhere.
AZjeff
$50 Site Donor 2023
This year. Notice the 5w-30 says synthetic blend in the lower left and the others don’t. The PYB is the same. I had a live person tell me the 10w-30 is not a blend. So the bottles don’t say blend, a Pennzoil person said not blend but the website says blend. Who knows?
- Joined
- Aug 15, 2024
- Messages
- 343
Are all of those API SP?
Valvoline white bottle 10/30 is straight dino slowed down oil consumption in my beater
- Joined
- Aug 15, 2024
- Messages
- 343
That’s gonna tell me what’s on the shelf at your Home Depot?
Here are some recent pics of the classic yellow bottle 10w30. It’s SP yet there is no mention of being a blend. I’m thinking it’s downward marketing to get back the basic yellow bottle fans. The shots were taken at the local country hardware store.
$44.99? Yikes! Check for dust on top. That oil may have been sitting since the Reagan administration…..API SP not withstanding of course
Toss in a cup of ester to soften and swell certain rubbers (buna-N/nitrile, neoprene, urethane)
