Is it bad to switch from moly to titanium?

[cheesepuffs]

Hey guys. So I'm running Pennzoil conventional right now, which obviously has more moly content than say Mobil Super which has basically none. We all know Mobil Super uses titanium instead, and my question is that since moly supposedly builds up a layer or "plates" your bearings for protection, wouldn't it be better to continue the use of a moly oil over multiple OCIs? Is it bad (or at least a waste) to run a moly add pack and then just "wash" that moly layer away with a titanium add pack oil?

If true, then is there really some weight behind the old mentality of not switching oil brands often?

 

[gregk24]

I think its a wise choice to find a good oil with a good add pack and stick to it... Pennzoil Conventional is one of, if not the best conventional oil out there so you are well on your way.

 

[SF0059]

Is there a reason for the sudden switch?

 

[MrQuackers]

I think it is a wise choice to get name brand oil on sale and use conservative severe service intervals. I figure alternating brands just might play a role in keeping an engine very clean. I've got warm and fuzzies all over the place!

 

[fdcg27]

The moly layer only forms under certain conditions, is very thin and is continuously cleaned off.
Going from an oil containing moly to one using titanium or sodium will do no harm at all.
There are too many folks who've run too many miles on a constantly changing selection of oil to believe that changing oils will do any harm.
There are even nice used oil analysis in that section of extreme blends of entirely different oils that look really good.
I wouldn't be at all concerned about going from Pennzoil conventional to MS.
Both have shown themselves to very good and MS is usually cheaper.

 

[cheesepuffs]

Originally Posted By: SF0059
Is there a reason for the sudden switch?


I'm not actually switching from Pennzoil conventional to Mobil Super 5000, I'm just throwing a hypothetical situation out there. I haven't see anybody talking about this but it seems to me like although any SN oil will suffice that it could even better to stay with consistent types of additives long-term. I'm just wondering if there's any truth to my reasoning.

 

[Errtt]

Moly takes more time/miles/heat to layer in.

My DD vehicle. Started out with Mobil Super 5000, then used a few fills of PP, now I'm on a 2nd fill of Kendall full synthetic. Now I don't have enough Kendall to do the next OC, I'm going back to PP since I have stash of it. No noticeable difference.

Another vehicle, I switched from a moly oil to Mobil Super 5000 and no noticeable difference. Been using the Mobil Super 5000 a few years now on it.

Last I checked the Kendall had a bigger dose of titanium than the Mobil Super 5000.

 

[cheesepuffs]

Knowing that moly takes more time to layer in, would titanium be a better choice for vehicles that are frequent short-trippers? Isn't titanium activated at a lower temperature and therefor could provide better protection for engines that spend a larger portion of their road-time while still cold?

 

[Garak]

Originally Posted By: cheesepuffs
I haven't see anybody talking about this but it seems to me like although any SN oil will suffice that it could even better to stay with consistent types of additives long-term. I'm just wondering if there's any truth to my reasoning.

Sticking with one thing is my preference/phobia. But it is a phobia, and far from scientific.

 

[901Memphis]

Originally Posted By: cheesepuffs
Knowing that moly takes more time to layer in, would titanium be a better choice for vehicles that are frequent short-trippers? Isn't titanium activated at a lower temperature and therefor could provide better protection for engines that spend a larger portion of their road-time while still cold?



I would probably agree with that but Titanium is in a very few brands today. There are still plenty of other anti wear additives at work besides the moly and titanium though.