Castrol Syntec 10 W 30

[Bustawrench]

How does this oil stack up aginst Mobil 1 or Pennzoil Platnium?

Application will be Jeep 4.0 I-6 motor in an '04 Grand Cherokee with 60,000 miles. Running Mopar filters.

Have decided Rotella is not for me and the exotics are too expensive.

Decided to use synthetic due to truck being a weekend driver which will see no more than 4,000 miles per year. OIC= 5,000 or six months, whichever happens first.

Thanks in adavnce.

 

[wavinwayne]

It will work just as well as the others you mentioned, IMO. Use Syntec with confidence.

 

[Gary in Sandy Eggo]

Originally Posted By: Bustawrench
Decided to use synthetic due to truck being a weekend driver which will see no more than 4,000 miles per year. OIC= 5,000 or six months, whichever happens first.

Lessee . . . changing oil every six months with approximately 2000 miles on the oil because it's not driven much more than 4000 miles per year . . . ?????

Why would anyone waste money on a synthetic oil which won't perform any better than any conventional oil over that span of mileage?? The only thing that makes synthetics better is they tend to shear to a lower operating viscosity slower than conventional oils.

Conventional oils have been considered good enough by auto manufacturers for 7500 miles or 1-year, whichever occurs first for decades. Only reason to change more frequently is to control contamination build-up in lightly/slightly used oil. Synthetics are no better in this regard.

Anyways, your question was about Syntec. It'll do just fine under the conditions you described, as will every other oil on the market today.

 

[rg200amp]

its a very good oil. Out of the oils you said, I like Pennzoil Platnium the best. It is, IMO, one of the best oils around now that can be bought at almost any auto store.

 

[Bustawrench]

Originally Posted By: Gary in Sandy Eggo
Originally Posted By: Bustawrench
Decided to use synthetic due to truck being a weekend driver which will see no more than 4,000 miles per year. OIC= 5,000 or six months, whichever happens first.

Lessee . . . changing oil every six months with approximately 2000 miles on the oil because it's not driven much more than 4000 miles per year . . . ?????

Why would anyone waste money on a synthetic oil which won't perform any better than any conventional oil over that span of mileage?? The only thing that makes synthetics better is they tend to shear to a lower operating viscosity slower than conventional oils.

Conventional oils have been considered good enough by auto manufacturers for 7500 miles or 1-year, whichever occurs first for decades. Only reason to change more frequently is to control contamination build-up in lightly/slightly used oil. Synthetics are no better in this regard.







So what are you saying? I should leave the oil in there for 3 years?Sounds like a good way to kill a perfectly good engine to me.

FSM maint schedule 'B' says; 3,000miles or 3 months, using 10W30 conventional oil, so I don't know where you're getting your info from.

Changeing the oil myself with syntec is actually cheaper than the oil changes at Jiffy Scrub or Grese Monkee. I plan to keep this Jeep for awhile, so why not spend the extra $10 bucks, twice a year. That's why I would spend the money.

 

[Jim Allen]

Hey Bustawrench: Looks like nobody welcomed you yet.

Gary was suggesting that in the short OCI intervals you propose, the Syntec won't do you any more good than a quality conventional oil. If you do some research here, you will find a lot of agreement on that, including by me. He was just tryin' to save you a few bucks.

If I were you, I'd consider at least a six month OCI. There is plenty of evidence to back that up, including what Gary showed you. Motor oils have very good anti-oxidant packages these days and are well up to that interval (many of us go a year or more... do some research here at BITOG). The longer interval would depend on how your rig is used. If it would get it's miles in short hops (less than 30 minutes running), then you should with a 3 month interval. If it gets enough longer runs, then it has plenty of time to cook out moisture and fuel dilution (not to mention it gets fully warmed up so there won't be as much fuel dilution).

I use 1 year intervals on some of my rigs, backed up by UOAs and a suitable driving cycle. I have some equipment that's on a two year interval, which is still in the experimental stage but looking good so far.

It's all your choice, of course, but there's no shortage of opinions here and if you can get used to the brevity some posters use, you'll get a lot of good facts to ponder.

 

[Bustawrench]

Originally Posted By: Jim Allen
Hey Bustawrench: Looks like nobody welcomed you yet.

Gary was suggesting that in the short OCI intervals you propose, the Syntec won't do you any more good than a quality conventional oil. If you do some research here, you will find a lot of agreement on that, including by me. He was just tryin' to save you a few bucks.

If I were you, There is plenty of evidence to back that up, including what Gary showed you. Motor oils have very good anti-oxidant packages these days and are well up to that interval (many of us go a year or more... do some research here at BITOG). The longer interval would depend on how your rig is used. If it would get it's miles in short hops (less than 30 minutes running), then you should with a 3 month interval. If it gets enough longer runs, then it has plenty of time to cook out moisture and fuel dilution (not to mention it gets fully warmed up so there won't be as much fuel dilution).

I use 1 year intervals on some of my rigs, backed up by UOAs and a suitable driving cycle. I have some equipment that's on a two year interval, which is still in the experimental stage but looking good so far.

It's all your choice, of course, but there's no shortage of opinions here and if you can get used to the brevity some posters use, you'll get a lot of good facts to ponder.


Sorry if that sounded like a rant........I'm used to getting flamed elsewhere, some maybe I'm a little defensive.

Jeep will be used mostly for short trips of 5 to 10 miles on weekends with the occasional 60-100 mile round trip. That is why I'm thinking synthetic...........to stretch out the interval a little.

Standard interval is 6 months/6K.........but short trips and stop n go constitutes severe service. This is Jersey, after all.