Pennzoil Conventional : 5k?

[fisher83]

I drive a pretty good mix of city/highway in both of my vehicles listed in my signature and most of my trips are 10 miles or more. The recommendations for normal conditions are 7,500 miles on the Hyundai and 6,000 miles on the Dodge. Both vehicles are out of warranty and I plan on keeping them for a long time. I feel that 5000 miles should be a pretty good interval for both vehicles and it seems that PYB is pretty well regarded on here. I should hit that mileage about every 5-6 months. Would PYB be good for 5k in the conditions/vehicles I described?

 

[JZiggy]

Perfectly fine and good to the factory recommended mileage as well!

 

[vinu_neuro]

If you usually do 10 miles trips you can do 7,500 and 6000 miles intervals with PYB.

 

[dave1251]

5K is a pretty conservative OCI for most vehicles. You will be fine with PYB at that interval.

 

[bepperb]

At least. PYB could easily be used to the manufactuer's OCI especially considering those OCI's were for SM, probably SL on the 04 and the SN oil is even more robust for "long drain intervals".

 

[Thax]

Pennzoil , Valvoline , Castrol and any other conventional oil meeting API SN/ ILSAC GF-5 will be able to handle such a OCI.

 

[mechtech2]

Over 200,000 miles, you will have 7-13 more oil changes with the shorter OCIs. No big deal over that long of a time. [7,500 and 6,000 to 5,000)
You will get better flushing of contaminants. Seal life should be helped, not so much now, but down the road. Possibly less oil use, but that is variable and may only come into play later on.
5K certainly is not a short OCI.
It's nice to know that you DO have flexibility, and can go longer.

 

[dave1251]

5K not a short OCI? I think many companies recommended that OCI since at least the mid 90's.

 

[1999nick]

Some other old guy can correct me (I'm 75) if I'm wrong, but my memory is that most American cars were advising OCI's of 7500 miles for normal driving, and 3000 for severe service at least as far back as the early 1970's.

 

[fisher83]

Thanks for all of the replies! I was relatively certain that this would be a good combo. Probably will pair it up with Purolator Classic filters. I was originally tempted to go the synthetic route. I have done a couple of oil changes with the Napa Synthetic and the Super Tech Synthetic but since I really don't want to go past 5k on my OCI I doubt that I would ever see any benefit from using synthetic. Not saying there IS no benefit, only that for my vehicles and my OCI, it is probably negligible.

 

[cb_13]

I have an 04 F150 and an 02 zx2 both on 5k intervals with PYB. The car goes a little over sometimes as it sees mostly interstate driving. I have had zero problems with it so far. I also agree with the previous statement that any conventional meeting SN would do. Although I prefer the pennzoil in the vehicles I have now valvoline and castrol gtx have also served me well in the past.

 

[addyguy]

Originally Posted By: 1999nick
Some other old guy can correct me (I'm 75) if I'm wrong, but my memory is that most American cars were advising OCI's of 7500 miles for normal driving, and 3000 for severe service at least as far back as the early 1970's.



I'd bet following the 7500-mile interval in the 1970's is what sludged-up engines.

 

[HK_Ace]

I use PYB at times and as with any conventional, I will not go much over 5,000 miles unless I am doing all highway driving, but 5,000 is a good OCI.

 

[Garak]

Originally Posted By: addyguy
I'd bet following the 7500-mile interval in the 1970's is what sludged-up engines.


Back when they were on carbs, particularly smog carbs that never ran right in the first place and diluted the heck out of the fuel, I wouldn't doubt your assertion in the least.

 

[SS1970chrysler]

Originally Posted By: 1999nick
Some other old guy can correct me (I'm 75) if I'm wrong, but my memory is that most American cars were advising OCI's of 7500 miles for normal driving, and 3000 for severe service at least as far back as the early 1970's.


My '78 Ford lists 7500 miles and change filter every other change in the owner's manual as recommended service.
Not a good idea IMHO.

 

[Garak]

Agreed. That might be a little optimistic for both the oils of the time and the carbs of the time. If it were only highway miles and the carb was correctly functioning and one stuck with a 10w-30 of the time (rather than a 5w-30), it could be done. We did 6000 miles on taxis in that time frame with 10w-30, with LPG and, hence, no fuel dilution, with no sludge issues.

 

[artificialist]

Originally Posted By: Garak
Originally Posted By: addyguy
I'd bet following the 7500-mile interval in the 1970's is what sludged-up engines.


Back when they were on carbs, particularly smog carbs that never ran right in the first place and diluted the heck out of the fuel, I wouldn't doubt your assertion in the least.


There was another reason I was told 70s engines were a problem. Some of them had been built to run at higher temperatures to lower HC in the exhaust, but there were no oil coolers to compensate for that. Oil standards hadn't increased even though temperature did.

 

[Garak]

That could very well be another issue. However, back then, a lot of mechanics would intentionally put in a cooler thermostat. I don't know whether or not that ever improved anything with respect to the oil, and it's too late to really find out.