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Thanks for the fast responses! I'll see what my local Wally World has on the shelf tomorrow.

I have a Kawasaki 21hp FH941V engine on a Gravely zero-turn mower that gets run about 6-8 hours at a time, every other week. West Texas, typical summer temps right around 100, with LOTS of dust (thin grass, 10% humidity). The engine manual calls for straight SAE40 oil, and shows 10W-40 up to 90...

After the Citrus Acid wash and with the new water pump, the temps are rock-solid at 180* where the t-stat is rated, even idling at stop lights after highway runs in 90* weather.

Thanks everybody for the info - I went with Zerex G-05 as it's readily available locally at a decent price. After the Citrus Acid wash and with the new water pump, the temps are rock-solid at 180* where the t-stat is rated.

In this post (Gelatinous Chunks) I got the low-down on cleaning out my old '71 Buick's cooling system, and was planning on using good old Conventional Green coolant once I get it all back together. Cast iron block and heads, Aluminum intake manifold and radiator. Then I got to wondering.... is...

Originally Posted By: JHZR2 Glad it worked out. Where did you get the citric acid? I haven't bought any for a few years from the MB dealer. JOD, I'd think that'd be fine, from what I gathered it's pretty much all the same powdered. I got my CA from a local Snow-Cone flavor supplier, it's made...

2000 Chevy Silverado with a 5.3 V8, 150K miles. I got a great deal on the truck used, and am pretty sure the DPO didn't take much care of it. The heater core keeps plugging up with orange goo, but will easily clear with a core backflush. The engine runs fine, no overheating or other issues that...

Originally Posted By: JHZR2 This is how I do it: http://dieselgiant.com/mercedes_citrus_flush.htm Pretty consistent with the MB FSM. All my Mercedes cars have had complete original cooling systems at the 30+ year point and >>200k using this process. Just got done doing that, thanks for the...

Originally Posted By: JHZR2 Originally Posted By: JD4440 Classic dex/conventional gelling I'd say +1. You used all makes which is a dex clone, and then went to green. This is what one sees when they do that... Id do a proper citric acid flush of the engine. Ok, how do I do a proper citric...

Yes I recently installed the heads, could well have gotten oil n the coolant passages in the process. I'm going to flush the radiator, as well as the block while I've got the radiator out. Thanks for the advice! Silicate dropout - learn something new every day...

What are these gelatinous chunks? So I just got this '71 Buick 455 back together and running after it sitting with the radiator out for 5 years and the heads off for the last year... In the process, I put in a brand new aluminum radiator with 2 each, 1" cores that's been sitting in a box for a...

Originally Posted By: bdcardinal You cut open a classic. I can't even get that number anymore. I've got 2 more if you want them - yours for the shipping.

It's not that old, at least it hasn't been on my shelf nearly that long. I picked this up from Rockauto.com just awhile back on a wholesaler close out. Now, there's no telling how long it sat on 4 or 5 other people's shelves. Anybody know how to decode that production code on it? Maybe there's...

Like the AC Delco I just posted, this is used mostly on old Buick engines from like '68 to '87, I'm thinking that not much has changed in their design in decades other that maybe materials. I had this on my shelf and won't be using them - and I just got this oil filter cutter, so... MotorCraft...

At least, I didn't find any "E"s on it anywhere... This is used mostly on old Buick engines from like '68 to '87, I'm thinking that not much has changed in their design in decades other that maybe materials. I had this on my shelf and won't be using them - and I just got this oil filter...

Found it: http://www.bobistheoilguy.com/forums/ubbthreads.php/ubb/showflat/Number/3311342/Searchpage/1/Main/213969/Words/%2BFilter+%2Bcutter/Search/true/Re:_Oil_Filter_Cutter_Recommen#Post3311342 I love Bob!

Originally Posted By: 901Memphis Glad you got a lot of filters for a deal. Thanks! I'm thinking that at that price and since it'll take me a decade to use them all, I might as well cut a few open and compare their internals. Now, where to get a filter cutter?

Originally Posted By: johnachak The car went over 40 years on Delco's and you want to change? BTW, if the Motorcfaft filter doesn't have an S in the # it's the same old rubber valve as the Delco. Actually, no. I got the car at 85K miles in '84, and used to be a diehard Fram user. Then Frams...

Thanks for the heads-up on the TG25! Oddly enough, searching based on the vehicle never turned up any Fram but the base PH25. Rock auto also has Mobil 1 filters for $2.50, and Wix's for $4 or so, so I've ordered 3 each plus the TG25's, so I'll be able to make some comparisons. I'll post some...

Looking for a good oil filter, where efficiency (catching particles) is my priority. The car is a '71 Buick LeSabre with a mild performance, recently (8-mile track for test-n-tune. I drive it easy until it's warmed up and don't drive it like my hair is on fire, although I do like to open it up...