D.FYLAKTOS

Can we consider an engine oil test like this as ''reliable''?

"For eductaional purposes only", for sure i don't care about -25 'C but it's interesting at +20 'C Flow test 0W20, 0W30, 0W40, 5W30, 5W40, 5W50, 10W40 temps +20°C and -25°C Mobil The synthetic 5W-40 beats the semi-synthetic 10W-40. _______________________________ Flow test 10W30, 10W40, 10W50, 10W60 temps +20°C and -25°C. The 10W-40 beats the 10W-50.

I remembered this: 5W40 VS 15W40 Diesel Oil at -25C _______________________________________ I found a photo from my archives, was Spring (not too hot) but that cusred Motul 10W-40 Synthetic didn't perorm so well in coolant temperature. With the 5W-40 Shell i nevear had this indication even at hot days of July with +40 °C outside. Isn't that a bit of weird?

@R_U_AFA Do you use (soft) plastics care products?

Felicia had in the manual SG - Meets 1989-1993 requirements of Automotive manufacturers. Now obsolete. That Motul "looks promising". The worst temperature here in my place was -4,5 °C before two decades, the average temperature for January here is about + 7°C and we very rare we see snow. The 5W so far did a record in fuel consumption at Summer,Autumn but let's see for the December (next oil change) what he can do.

I also made a research for 15W-50 Synthetic but there are not many options. There is Total QUARTZ RACING 10W-50 https://www.finol.ie/wp-content/uploads/2017/04/quartz-racing-10w-50-engine-oil_79.pdf says "can be used in the most difficult operating conditions (motorways, dense city traffic...) whatever the season. Although does not mention VW Specifications ACEA 2007 A3/B4 API SM / CF Referent engine oil for PEUGEOT SPORT ans CITREON SPORT SUBARU (Level) Viscosity at 100°C mm²/s - 17 Viscosity at 40°C mm²/s - 115 Viscosity index - 164

A bit hard to find here but it can be done. Repsol produces also G11 antifreeze, i have use it nd i was very happy with it. Can not be found here any more, i must order it from aboard country. Another one is MOTUL 4100 POWER 15W-50 (Technosynthese) but i hesitate since Motul 6100 Synergie 10W-40 (also technosynthese) didn't worked for me.

Mobil-1 15W-50 Motorsport https://www.mobil.com/en/lubricants/for-personal-vehicles/our-products/products/mobil-1-15w-50 now is very hard to be found here, no VW specifications. Valvoline SynPower 5W-40 (synthetic) Mobil-1 5W-50 Rally Formula (synthetic) I change them very quicly, i din't like the engine loud ''rattle" noise. Repsol 5W-50 Master Racing (synthetic) I didn't push it too hard, i don't remeber something about noise. Motul 300V 10W-60 Le Mans (Ester) I didn't push it too hard either but they told me that Ester oils are not good for more than a year inside an engine, are hygroscopic plus have no VW specifications so i din't tested them again. All of my engine oil intervals were from 5000-7000 Km excpept the Valvoline SynPower 5W-40 (synthetic) and the Mobil-1 5W-50 Rally Formula (synthetic) which change them after few months of use. I start taking seriously measures about fuel consumption after Mobil-1 15W-50 Motorspost use, those years i could only via Gas Station pupm test, Motul 6100 Synergie 10W-40 and Shell Helix Ultra 5W-40 tested via TC-6.

Here is the whole list, keep in mind that in first years there was no internet, no forums, no e-stores etc but only some advises from car magazines-other drivers and local mechanics. Inevitably due misinformation some mistakes could happen. Factory oils, (i couldn't know the brand or viscosity) Warranty oils (couldn't see the brand from a distance, was green bottle with yellow cap, they didn't told me which brand or viscosity) EKO Megatron 5W-40 (synthetic) Valvoline SynPower 5W-40 (synthetic) - Surely not happy Repsol 5W-50 Master Racing (synthetic) Motul 300V 10W-60 Le Mans (synthetic) Mobil-1 5W-50 Rally Formula (synthetic) - Extremely Not happy Mobil-1 15W-50 Motorspost (synthetic) Amsoil 10W-40 AMO (synthetic) Castrol Magnatec 10W-40 (semi-synthetic) - Not happy Motul 6100 Synergie 10W-40 (technosynthese) - Not happy Shell Helix Ultra 5W-40 (synthetic) The engine oils that i ''pushed'' hard were (and i rate them for: engine noise, cold start few meters, rev-up and fuel consumption): 3rd: Mobil-1 15W-50 Motorspost (synthetic) 2nd: Amsoil 10W-40 AMO (synthetic) 1st: Shell Helix Ultra 5W-40 (synthetic)

Maybe there are aftermarket (although not the same quality as the original) but expensive or you can find from another Felicia which is sold by parts for example was crushed from behind and all the front parts are intact.

Synthetics: 5W-40 Shell and 10W-40 Motul (2 oils) and Amsoil, so far the 5W-40 is the ''winner'' in everything (i don't know about engine wear that other memebers said that i am going to face). Semi-synthetics: 10W-40 Castrol (poor performance-fuel consumption) and another cheap brand from a local dealer at the 1st service, a terrible engine oil but i had to go due to the warranty rules.. I have used before 17-19 years Valvoline 5W-40 and Motul 15W-40 but i don't remember something ''great'' about them plus i wasn't paying too attention to fuel consumption those years. I am on the tablet now, not at home to check my notes but i don't think that i have forgoten something.

Oh, something like this?

IF the guy knows what he is doing then the results would be very good and you will save money, if he don't they he will make them very stiff and in every pothole your teeth will suffer. If you don't want to take the risk then buy a new set, simple one not something expensive, Bilstein black for example are good for simple use close to original.

Depends from the brand and the mechanic who will do the ''refurbish'' work. Some ask for 1st time the 1/2 or 1/3 of the price of the original and some (if you make many Kms pre year) they give you the promise that next time will ask the half or the price (of the 1st time). If the guy is famous about suspensisons with good reviews ''go for it'' otherwise buy a new front set (Koni-Kayaba-Sachs), it's more reassuring. Except the purchase or the refurbish work that which plays the main role is the Fitting.

The temperature here start rising, the fuel consumption start rising too just a click, i will show that with photos in next post. The 11,7 ltr/ 100 km (few days ago) is the lowest i have seen for many years and the 5W-40 is responsible for this. I am monitoring every change (cold start, fuel consumption, engine noise etc) with that new 5W viscosity and present the results till the next oil change.

As the weather getting worst the fuel consumption is lowering ! Not good quality photo but it was night and i had no time. As the ambient temperature start rising a bit the fuel consumption followed, one click ''worst'' than Cold weather, i will post some photos in my next post.

While waiting for the next engine oil change (from Synthetic 5W-40 to 10W-40) i post some photos in that non futile and thankfully endless topic. For first time in the latest years the fuel consumption is getting Lower (same route in city traffic). As the weather is getting Cold the fuel consumption will lower more, i will post some photos as a prove.

As for the history: Eibach and Apex have lowering springs especially for Felicia, the Eibach are 40mm and Apex 35mm. If they installed without the proper shock absorber they will ruin it soon and the suspension will not work properly. Factory absorbers or same style won't do, you have to install other brand as Koni for example.

I have done the same in the past, no Skoda-forums, no Youtube, no Skoda manual, no Haynes just my ''inspiration'' but as i see it now was too dangerous. Except scratches could brake the plastic part below the speedometer, a Newbie mistake that never repeated again.

I asked recently this company for a windscreen replacement, they say not worht it if it's from China because will show some distortions in the sun, also i have read complains in forums from other drivers about those.

This company? https://www.hellopeter.com/bsg-glass-fitment-centre

A 1 euro silicone won't do the job as one with 15 euro, there are silicones that can be used in aquarium for example which means can stand to 100% water contact for about 15 years. In the 1st sealant (they call it "Macaroni" or "Cord" here) there are levels of quality too, learn it by bad experience. Here in Greece some companies offer after market windscreens but some of them are from China and there are some kind of ''waves'' in the direct sun while driving. In case of a crash or vandalism if you have insurance the replace is Free but the quality is an issue, some drivers made complains after installation, some don't.

G12 has Density 1,119 g/cm3 an G11 has Density 1.80 g/cm3 that plays any role for the warm-up time? If we heat them for example 3:40 minutes in the end of the test the temperature diferrence would be significant? Who will get warm faster?

Original, Used or after market? Sealant like this https://m.media-amazon.com/images/I/71pgUvxRs6S._AC_SL1001_.jpg or this? https://m.media-amazon.com/images/I/814hEbHhVTL._AC_SL1500_.jpg

The rate of Antifreeze presence in Coolant does not play a crucial role? A 50 water-50% Antifreeze Coolant mixture won't get warm-up later than a 20-80% one?