have a 240 for couple of weeks with 240+ on it. Prev. owner
said they changed the oil regularly..but said they went to
various locations to have it done...so not same type of oil/grade used.
Any ideas on what I should be using??
Marty 1987 240

I have 212000 on a GL. Still as strong as it was in 88. Castrol GTX 10/30 or 10/40 in winter and 20/50 in summer. Use a quality filter and change it every 3500 miles. Take the oil cap off and look inside. It should look shiny and clean in there. If not add a half quart of Rislone every change till it cleans up.
This will clean the motor slowly and safely. Don't use a motor flush. This may break loose sludge that could clog oil passages. I agree that synthetic may not be the best choice. It is expensive and in my opinion unneeded in a non-turbo.

mark

For your car, I would use Mobil 1 Drive Clean Synthetic Blend in 10-30 with a Mann oil filter. Change it yourself and save: see the FAQ for ideas.

Mobil 1 10W-30. If you have an aversion to synthetic, I'd use Castrol GTX 10-30 in winter and 20-50 in summer.

Roguls
New York, USA

With all due respect to Paul, I don't think I'd use a synthetic in your car. There are countless horror stories about people who change to synthetics and find it is so slippery, it leaks out the seals. Happened to me with a lot less miles (wear) on my engine. Looked like the Valdez was parked in the driveway. I prefer a good name brand straight 30, such as Valvoline, but a multi weight (10/30) is supposed to be okay so long as it doesn't set for a lengthy period. Personally I'd stay away from Pennzoil and Quaker State. Too much build up internally. Brand loyalty is fine, and any brand name oil will more than fill the requirements of a daily driver. Filters such as NAPA, Wix, and Mann are the better ones, avoid the cheapies from the discount parts houses.

You will quickly find everyone here has an opinion on things such as this (oil, filters, plugs, tires, and other disposable's). This is my personal opinion, having 17 licensed vehicles in the yard (all driven daily). Only one will get synthetic oil, my brand new GM pickup, and only once it gets 10,000 miles on it. Then it will get Mobil 1.

Leonard

Generic recommendation is to follow what your owner's manual says. 10W-30.

Synthetic 10W-30.

I like, use and sell Amsoil because it has the lowest wear in ASTM tests of any oil. I got hooked by buying at the store after doing serious research, (sorta expensive at the store though), Then I said why not get the lowest prices available? And became a dealer - suddenly I'm selling the stuff.
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www.fidalgo.net/~brook4

So what does it cost? I didn't notice any obvious prices on your website, but I didn't spend a whole lot of time searching.

Please provide a price quote for 5 quarts of 10W30 and a filter.

10W-30 (ATM) is $5.70 per quart. (a little less for case price or as a preferred customer about $4.50/qt)

The filters are about $10.

Just call 800-956-5695 and give them customer #515729 to order or find out how to become a preferred customer. (pays off if you cross the $80-100 per year in lubes mark)
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www.fidalgo.net/~brook4