How many miles are y'all driving between oil changes using synthetic brands????

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2001 SCREW, Lariat, 4x2, Two-tone Black, 5.4 V8, Cab steps, Leather bench, cd changer, 3.55
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Man, this post will fill up fast....

First of all, I'm a recent synthetic convert. But some of the questions you'll get are "what sysnthetic are you using?" And "are you changing the filter in between and what filter?"

I'm doing Mobil 1 and Mobil 1 filter at 3000-4000 miles just to get it "flushed" now. However, just for thought, up until 2001, Chevy recomended 10000 mile drain intervals for the Corvette that rolls out of Bowling Green with Mobil 1. 2001 they went to 15000 miles recommended.

All the Amsoil users will tell you about Amsoil 2000 (I think it's called). I'd recommend reading about it on the Amsoil site. Also look at Modil 1 site.

Filters are probably the most important thing. Amsoil has more contamenant capacity but Mobil 1, Purolator Pure One and Amsoil filters seem to top the charts. I was a Fram user ( I know, I know) I was awakened. About the worst filter on the market. Motorcraft is a very good quality filter for about $2. The others I mentioned above are about $10 except for Amsoil which I think is like $20 to $25, but appears to be well worth it and chealer in the long run. (Man I hope I didn't get price ranges wrong and start something)

I'm new at synthetics so I'm still trying to adjust to extended drain intervals so I'll probably be going no more than 5000 until I get the "mental" old school oil change hang-ups dealt with.

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Using Mobil 1 I change oil and filter, (MotorCraft filter) every 5,000 miles. Been doing this way for years.

 

5000 miles is a good rule of thumb.

Tony

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'01 SCrew XLT 5.4L 4x4

'93 Taurus SHO

 

If you're going to change it every 5,000 miles, you might as well just continue using regular oils. I've done some reading/research on the subject, and the consensus is synthetics can go up to 100,000 miles between changes (with new filters more frequently), although I'd never try this myself. I think that changes every 15,000 to 20,000 miles is appropriate. Point is if you're going to change the oil every 5,000 miles, why pay the big bucks for synthetic?

 

Well So far, I have had the same oil in my truck since Jan 2000. That is just about 1 1/2 years. I have over 10,000 miles. I did a filter change July last year. So far no problems. Will be doing an oil analysis soon. Getting ready to put a by-pass on and will be done changing oil for along time.

Remember just because it is syntheic doesn't mean that it can go longer distances. It must be formulated with the right amount of additives to accomplish the longer drains.

I would say that Mobil 1 would be good for 7500-10,000 miles without a fiter change if you use a good filter. Namely a mobil 1 filter.

BTW, the oil that I am using right now states on the bottle: "drain at intervals up to 35,000 miles or 1 year. Filter change is recommended at 12500 miles or 6 months."

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I use Mobil 1 10W30 with a Motorcraft filter and change the oil/filter every 5000 miles. My truck gets a lof of severe duty though. (Off roading, towing, highway at 90 MPH, etc.)

-Jay
98 F150 4x4 SC ORP
33x12.50 Pro Comp AT's on stock wheels
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[This message has been edited by jayntguru (edited 06-25-2001).]

 

Am using Amsoil 2000 0w30 with Amsoil filter and have about 12,000 miles so far. Had toadd about 1/2 quart at 8,000, and expect to change it at 15,000. Good result so far with no engine problems at all. Expect to change the tranny to synethic when I do the engine oil change. It's worth paying the extra $$ for a good oil.

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97 F-150 Lariat, Leather, Ext. Cab
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Amsoil Series 2000, 0-30W

 

I change the Mobil 1 in my Vette every 10k unless the car asks for it sooner. (It's onboard computer does some math based on how much time it spends at what temperature, rpm range, etc and reports remaining life accordingly.) It always asks for it sooner, usually about 7500 or so.

I also use Mobil 1 in my Expy along with a Motorcraft filter. This one gets changed every 5k. (Much easier than the Vette too ) The Chevy block is designed with synthetic lubrication in mind, mostly meaning the cylinder wall finish and ring design are optimized for synth characteristics. I don't think this is the case with the 5.4 Ford motor so I don't push it beyond 5k (much, unless I forget ) I'm mostly concerned with avoiding warranty issues. I would have no problems running to 10-15k otherwise.

Anybody know change intervals for the Saleen engines that come with a synthetic factory fill?

 

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[This message has been edited by RebelYell (edited 06-26-2001).]

 

After the first synthetic oil change the oil should never need to be changed again. Change the filter every 5000 miles and the 1 quart of oil that needs to be added because of the filter change should sufficiently recharge the additives for the next 5000 miles until the filter gets changed again. My 97 F150 has 81,000 miles and that is what I've be doing. Amsoil 10W30 synthetic and an Amsoil filter. This information came straight from Amsoil, and so far all is well.

[This message has been edited by Rick99 (edited 06-27-2001).]

 

I run Amsoil 0W-30 winter and 5W-30 summer. I put about 25K per year on my Expedition. I have been changing the Amsoil at around 10-12K. My first analysis said the additives held up very well at 12K.

Amsoil filters at a local parts store costs me $10.50.

The Amsoil NEVER got to that black watery-thin point! ALL conventionals I've used are black and watery-thin by 4K ish.

 

I recently found this site when doing some research for my desired S-Crew (hopefully). Great info on this site!

Currently I have a 4.0L in my Ranger that was switched from conventional to synthetic oil after 30,000 miles (changed every 3000). Since switching to synthetic, I have been changing oil every 5,000 for the last 9years and now have 271,000 and still going strong.

 

Sorry I missed this earlier...

The tires are pretty cool, overall I give them a thimbs up.

On road performance is better than the stock tires, whatever they were. At 45K, my stock tires would not die, I had to replace them just because they sucked so bad.

The Pro Comps have a 50K warranty, which is cool, too. The only problem is that I'm 10K into my tires, and they are already half worn. (Probably is my driving style, I'm not easy on my truck.)

They fit just fine in my truck without me doing anything special. I have the ORP package which gives a bit more clearance from what I understand. I cranked up the front end of the truck 1" anyway just because, and the truck looks real nice.

Off road the tires work fairly well. They have a big proglem in mud though, well clay really is what we have around here. Once they hit mud, they do not clean themselves that well, and the front wheels act more like the skids on the front of a sled than wheels. When you go through mud, you have to just aim for the biggest ruts, because you will end up there anyway. Same thing with uphill sections in the wet, just aim for the ruts instead of falling in. But if you stay out of the mud, the tires do great. I have done some rock climbing in them, deep water crossings, loose gravel, regular dirt, and in pretty much anything dry they do a pretty good job. Around here (North Georgia) their lack of performance in the clay is a big, big problem, we have more of that than anything. For this reason, when these wear down too far, I plan to get the MT versions.

I bought mine from 4 wheel parts, which has a local store. They were running the "4 for 3" special, which made buying the tires a no brainer. If you can, wait until they run the special again, they seem to do it every few months.

I hope that answers your questions...

-Jay
98 F150 SC 4x4 ORP