Repzard

I go 5000 miles on mine.
Replace filter 2 times in that 5000 miles span.

Its the filter that doesnt last not so much the oil.

H0SS302

U full synthetic usually can go about 7K for the good ones. With a blend 5k easy and dyno is around 3k.


But then again thats GENERAL use... not banging the gears all the time.

Unleashedbeast

Tell me more about your car. Miles, does it leak oil, does it burn oil, how much oil does it use between oil changes, what oil have you been using? I'm shocked that no one else here has asked any of these questions, and know nothing about your car. They sure were open to offering bad advice though.

I will await your reply to help you choose a lubricant that will work the best for you.

There are more benefits of using a "true" synthetic base stocks than longer oil drain intervals.

1. Less heat due to less friction
2. Lower burn off/evaporation (NOACK Volatility)
3. Better cold flow charateristics
4. Better resistance to shearing
5. Better resistance to base stock oxidation
6. Lower wear due to lower friction

Royal Purple, Red Line, and Amsoil all use "true" synthetic base stocks.

Hope you don't think it's a "true" synthetic. It's not. Mobil's primary 5W-20 and 5W-30 are group III hydrocracked petroleum. Mobil's EP line moves up to group IV PAO (true synthetic).

Geez, you are wasting oil filters. Even cheap filters will easily achieve 7,500 miles. Your car only requires one filter for the 5,000 miles that you change it in. What are you thinking?

You are way off. A top tier "true" synthetic like Amsoil can be used for 15,000 miles or one year, which ever occur first. This is even the severe service schedule.

hydrocracked "fake" synthetics (highly refined petroleum) are good for up to 10,000 miles.

Synthetic blends like Motorcraft are good for 7,500 miles. Dino oils are just fine up to 5,000 miles. Gone are the days of required 3,000 mile oil changes.

DreamerGT

I glad you typed that out because I really didnt feel like repeating myself for the 1000th time.

fordforlife0225

mobil 1 every 4-5,000

i used royal purple for one oil change and didnt like the feeling of changing my oil once a year and i was sure as hell not going to pay almost $9 a quart to change it every quarter.

TheNameless

Originally Posted by TheNameless
Sup fellas, im going to be changing my oil sometime next week and was wondering whats the best oil for a high mileage engine. thanks

Tell me more about your car. Miles, does it leak oil, does it burn oil, how much oil does it use between oil changes, what oil have you been using? I'm shocked that no one else here has asked any of these questions, and know nothing about your car. They sure were open to offering bad advice though.

I will await your reply to help you choose a lubricant that will work the best for you.

My car just hit 140,000 miles no leaks and doesnt burn, and i got it last changed about mid January but had a shop do it due to not having a garage and the snow and they said they used 6q.( it was penzoil oil) and i checked the oil today and no oil is needed or anything yet

Unleashedbeast

Let's assume you drive 20,000 miles per year. If you were to use Royal Purple, change your oil and filter every 10,000 miles or 6 months, you would only change your oil twice a year. This may even save you money in a years time. You don't have to change your oil only once a year, but you are also wasting money doing it 4 times a year with oil that is only 2 bucks less per quart.

By doing it my way, you get the benefits from a true synthetic base stock that I mentioned above, you change your oil less (good for the environment), and you save money. It's all pros and no cons, no matter what way you cut it.

I see that you live in Illinois. Is your car driven year round? How hot does it get in the summer? How cold in the winter? How far do you drive your car on average per start up?

x7sage7x

[QUOTE=Unleashedbeast;7497357]Let's assume you drive 20,000 miles per year. If you were to use Royal Purple, change your oil and filter every 10,000 miles or 6 months, you would only change your oil twice a year. This may even save you money in a years time. You don't have to change your oil only once a year, but you are also wasting money doing it 4 times a year with oil that is only 2 bucks less per quart.

By doing it my way, you get the benefits from a true synthetic base stock that I mentioned above, you change your oil less (good for the environment), and you save money. It's all pros and no cons, no matter what way you cut it.[QUOTE]

AGREED! Very well put, the synthetic is an investment.

uberstang1

Ive always used the valvoline synpower, but thinking about changing up to penzoil this year we shall see.

Unleashedbeast

PP and PU are IMO, the best that group III base stocks get. They do a great job for the money, but you know me....give me the real deal.