Oil for 1994 Q

[tmak26b]

You see , it's just not about mileage but the condition of the fluid. I wouldn't be extending my interval because Lexus says it's ok. Use YOUR OWN BEST JUDGEMENT. If your best judgement says 10k, fine, your car, your call, your experience with your car. That's my point. We can argue distances all day but the fact is the oils condition. Manufacturers use a specified distance well under wear interval to cover their a$$e$. There cannot be a specified distance since actual mileage has no effect on oil, it's the usage and the time factors. How much does it idle? Does it get to operating temp? How long is it there? How do you drive? What's the load on the vehicle? What is the internal wear? Blah and so on. All engines have different wear rates and load demands. The mileage standard is a great thing to follow if you have no knowledge base on which to determine your own acceptable interval for what you do with your car and the fluid you choose. You will never go wrong changing your oil too early. Do you have to? No. Will it prevent premature wear and tear? Yes.

That's entirely your call, I stick by something like your schedule. I still dont believe in changing too early because we are wasting resources. 3-5K on dino juice sounds good, anythng early seems to be a waste. Synthetic can almost double it.

[Q45tech]

Wasting 6 quarts of oil is nothing compared to the 208 gallons [833 qts] of gasoline you WASTE driving 3750 miles..............wasting resources?

People will stretch oil changes and not check tires every week or alignments which is wasting or saving more resources?Saving 1.5 gallons of oil or 1.5 gallons of gasoline?

[qship96]

$35 spent on an oil analysis will inform you how your choice of oil performs in your specific motor and driving patterns/style......why guess and run oil too long or too short? Simple to get the facts for those who choose to.

[tmak26b]

Wasting 6 quarts of oil is nothing compared to the 208 gallons [833 qts] of gasoline you WASTE driving 3750 miles..............wasting resources?

People will stretch oil changes and not check tires every week or alignments which is wasting or saving more resources?Saving 1.5 gallons of oil or 1.5 gallons of gasoline?

That's entirely your call. For everything I waste, I do what I can to conserve. It's not so much about saving money, but more like resources. I am just saying there are no benefits in changing oil prematurely unless it is necessary. What you are saying is like saying I should litter because my little trash makes no difference in this society. Whatever makes you sleep better, but I havent seen any engine failures due to oil changing at 3000 on a street car. (not including defects)

[jimbyjimb]

Just another confirmation to pedal 4 days a week minimum...

[matdotcom2000]

This thread is great I wish I would have read this before after buying my car because I started using synthetic after the original owner had been using Dino oil 4 13 years and now I have replaced just about every gasket except for oil pan and head gasket my wish is to not have to replace the head gaskets as long as I own the car......

Matt

[mattd1979]

I'm going to be changing my oil today and I have been using M1 10w30. I read about the 0w40 M1 and Castrol syntec 0w30 is what I would get if I wanted true synthetic oil. I was wondering how the 0w40 would be in the summer here in florida? I have a mechanical oil pressure gauge in my car so I can see where the pressure is. When I first start the car up in the mornings, it is at 45 psi cold. When it warms up, it is just under 20psi and on the interstate at 70MPH is is at 73psi. with outside temps at 73 degrees. This is with the M1 10w30. What do you think it would be with 0w40? I was also thinking about Amsoil and Royal Purple synthetics. I can get both of those at either Napa or Advance Autoparts I believe. What do you think about those brands?

[maxnix]

Ever been to Costco and bought ... Grey Goose Vodka bottled for Kirkland Signature? Same product, lower price, different label.

Think about it.

Socialist state of Washington has monopoly on liquor sales.

Too much Grey Goose before shopping?

[mattd1979]

I'm going to make a seperate post of this.

[breaksr]

I've been using 20w-50 for about 140K miles with a change interval of 4K. Is that bad?